1408 Wonder Woman, Rubie's Masquerade UK commercial

Cleaned up clues:
1099: Original TV show character; 10s; Owner of some sort of music company
1117: From a commercial; based on comics; 80s; Action Comics; seen in commercial for breakfast item
1126: Original TV show character; 10s; salvage worker
1159: From a TV show; based on comics (comics version has different real suname); 20s; Steel, the Indestructible Man; high ranking in the miliytsary
1163: Original TV show character; 90s; first name is something in outer space
1165: Original TV show character; 80s; briely dated main character
1167: From a TV show; based on comics; 00s; Batman; assassin
1168: From a TV show; based on comics; 00s; The Brave and the Bold; leader of government team
1169: Original TV show character; 10s; model
1170: From a commercial; based on comics; 00s; All-Star Comis; spins to transform
1172: Original TV show character; 10s; junkyard owner
1183: From a commercial; based on comics; 10s; Detective Comics; has henchwoman
1190: From a TV show; based on comics; 10s; Doom Patrol; activist
1195: Original TV show character; 20s; wife of villain
1196: Original TV show character; 00s; scientist
1205: From a TV show; based on real person; 20s; writer
1224: Original movie character; 10s; robber
1227: Original TV show character; 00s; owned by major character
1232: From a TV show; based on comics; 90s; Action Comics; non-speaking role (a bit surprising in this context)
1240: From a TV show; possibly inspired by comics character with different name; 10s; Brave and the Bold
1243: From a TV show; based on comics; 80s; All-Star Comics
1244: Original TV show character; 00s
1245: Original movie character; 20s
1246: From a movie; based on comics (probably loosely); 70s; Batman
1250: Original TV show character; 20s
1251: From a TV show; based on comics; 10s; Detective Comics
1252: Original TV show character; 10s
1254: From a movie; based on comics (slightly different name); 70s; All-Star Comics
1273: Original TV show character; 80s
1274: From a TV show; based on comics; 10s; Fury of Firestorm
1282: From a TV show; based on comics; 10s; Batman
1284: From a TV show; based on comics; 10s; Year One: Batman/Scarecrow
1285: Original TV show character; 10s
1293: Original TV show character; 00s
1294: Original TV show character; 10s
1301: Original TV show character; 10s
1311: Original TV show character; 00s
1314: From a TV show; based on real person; 20s
1315: Original TV show character; 10s
1321: Original TV show character; 10s
1322: From a TV show; based on comics (slightly different surname); 70s; Action Comics
1323: From a movie; probably based on novel; 10s; Batman: The Ultimate Evil
1328: Original TV show character; 90s
1337: Original TV show character; 10s
1342: Original TV show character but probably named after song; 10s; song is name of character
1347: Original TV show character; 00s
1349: From a commercial; based on comics; 00s?; Action Comics
1362: From a TV pilot; based on comics; 00s; Adventure Comics
1363: Original movie serial character; 40s
1369: Original movie character; 00s
1372: Original TV show character; 10s
1373: From a TV show; possibly based on comics (TV version's first name unrevealed); 10s; Detective Comics
1377: Original TV show character; 00s
1380: From a TV show; based on comics; 00s; Batman
1382: Original TV show character; 80s
1383: Original TV show character; 10s
1385: From a commercial; based on comics; 70s; Action Comics
1388: Original TV show character; 10s
1390: From a TV show; based on earlier character same continuity; 10s
1391: From a TV show; based on comics; 20s
1393: Original TV show character; 10s
1394: From a TV show; dressed as someone based on comics; 80s; Action Comics
1395: Original TV show character; 70s
1396: From a TV show; based on comics; 80s; Detective Comics
1398: From a commercial; based on comics; 10s; Detective Comics
1400: From a TV show; based on comics; 90s; Batman
1402: From a TV show; dressed as someone based on comics; 20s; Detective Comics
1403: From a commercial; based on comics; 10s; Batman
1407: From a commercial; based on comics; 00s; Action Comics
1409: From a TV show; based on comics; 00s?; Detective Comics
1410: From a TV show; based on comics; 90s; Detective Comics
1412: From a music video; based on comics; 90s; All-Star Comics
1413: From a music video; based on comics; 90s; Action Comics
1418: Original movie character; 70s
1421: From probably multiple shows simultaneously; dressed as someone based on comics; 20s; Action Comics
1422: From a TV show; based on comics; 00s; Superman's Pal, Jimmy Olsen
1423: From a TV show; based on comics; 10s; Superman
1427: Original TV show character; 10s
1433: From a TV show; dressed as someone based on comics; 20s; Detective Comics
1435: Original TV show character; 20s
1436: From a commercial; claimed to be someone based on comics; 90s; Detective Comics
1440: From a TV show; based on comics; 00s; Action Comics
1444: Original TV show character; 90s
1445: From a TV show; based on comics; 20s; All-Star Squadron

 

1393 Lila, Gotham

Lila is correct; list updated. Clues List updated with oversights fixed.

1099: Original TV show character; 10s; Owner of some sort of music company
1117: From a commercial; based on comics; 80s; Action Comics; seen in commercial for breakfast item
1126: Original TV show character; 10s; salvage worker
1159: From a TV show; based on comics (comics version has different real suname); 20s; Steel, the Indestructible Man; high ranking in the miliytsary
1163: Original TV show character; 90s; first name is something in outer space
1165: Original TV show character; 80s; briely dated main character
1167: From a TV show; based on comics; 00s; Batman; assassin
1168: From a TV show; based on comics; 00s; The Brave and the Bold; leader of government team
1169: Original TV show character; 10s; model
1170: From a commercial; based on comics; 00s; All-Star Comis; spins to transform
1172: Original TV show character; 10s; junkyard owner
1183: From a commercial; based on comics; 10s; Detective Comics; has henchwoman
1190: From a TV show; based on comics; 10s; Doom Patrol; activist
1195: Original TV show character; 20s; wife of villain
1196: Original TV show character; 00s; scientist
1205: From a TV show; based on real person; 20s; writer
1224: Original movie character; 10s; robber
1227: Original TV show character; 00s; owned by major character
1232: From a TV show; based on comics; 90s; Action Comics; non-speaking role (a bit surprising in this context)
1240: From a TV show; possibly inspired by comics character with different name; 10s; Brave and the Bold
1243: From a TV show; based on comics; 80s; All-Star Comics
1244: Original TV show character; 00s
1245: Original movie character; 20s
1246: From a movie; based on comics (probably loosely); 70s; Batman
1250: Original TV show character; 20s
1251: From a TV show; based on comics; 10s; Detective Comics
1252: Original TV show character; 10s
1254: From a movie; based on comics (slightly different name); 70s; All-Star Comics
1273: Original TV show character; 80s
1274: From a TV show; based on comics; 10s; Fury of Firestorm
1282: From a TV show; based on comics; 10s; Batman
1285: Original TV show character; 10s
1293: Original TV show character; 00s
1294: Original TV show character; 10s
1301: Original TV show character; 10s
1304: Original TV show character; 10s
1311: Original TV show character; 00s
1314: From a TV show; based on real person; 20s
1315: Original TV show character; 10s
1321: Original TV show character; 10s
1322: From a TV show; based on comics (slightly different surname); 70s; Action Comics
1323: From a movie; probably based on novel; 10s; Batman: The Ultimate Evil
1328: Original TV show character; 90s
1337: Original TV show character; 10s
1342: Original TV show character but probably named after song; 10s; song is name of character
1347: Original TV show character; 00s
1349: From a commercial; based on comics; 00s?; Action Comics
1362: From a TV pilot; based on comics; 00s; Adventure Comics
1363: Original movie serial character; 40s
1369: Original movie character; 00s
1372: Original TV show character; 10s
1373: From a TV show; possibly based on comics (TV version's first name unrevealed); 10s; Detective Comics
1377: Original TV show character; 00s
1380: From a TV show; based on comics; 00s; Batman
1382: Original TV show character; 80s
1383: Original TV show character; 10s
1385: From a commercial; based on comics; 70s; Action Comics
1388: Original TV show character; 10s
1390: From a TV show; based on earlier character same continuity; 10s
1391: From a TV show; based on comics; 20s
1394: From a TV show; dressed as someone based on comics; 80s; Action Comics
1395: Original TV show character; 70s
1396: From a TV show; based on comics; 80s; Detective Comics
1398: From a commercial; based on comics; 10s; Detective Comics
1400: From a TV show; based on comics; 90s; Batman
1402: From a TV show; dressed as someone based on comics; 20s; Detective Comics
1403: From a commercial; based on comics; 10s; Batman
1407: From a commercial; based on comics; 00s; Action Comics
1409: From a TV show; based on comics; 00s?; Detective Comics
1410: From a TV show; based on comics; 90s; Detective Comics
1412: From a music video; based on comics; 90s; All-Star Comics
1413: From a music video; based on comics; 90s; Action Comics
1418: Original movie character; 70s
1421: From probably multiple shows simultaneously; dressed as someone based on comics; 20s; Action Comics
1422: From a TV show; based on comics; 00s; Superman's Pal, Jimmy Olsen
1423: From a TV show; based on comics; 10s; Superman
1427: Original TV show character; 10s
1433: From a TV show; dressed as someone based on comics; 20s; Detective Comics
1435: Original TV show character; 20s
1436: From a commercial; claimed to be someone based on comics; 90s; Detective Comics
1440: From a TV show; based on comics; 00s; Action Comics
1444: Original TV show character; 90s
1445: From a TV show; based on comics; 20s; All-Star Squadron

 

Character specific clues added for remaining characters. I might add more later but if so most likely after the tally clues.

1099: Original TV show character; 10s; Owner of some sort of music company
1117: From a commercial; based on comics; 80s; Action Comics; seen in commercial for breakfast item
1126: Original TV show character; 10s; salvage worker
1159: From a TV show; based on comics (comics version has different real suname); 20s; Steel, the Indestructible Man; high ranking in the miliytsary
1163: Original TV show character; 90s; first name is something in outer space
1165: Original TV show character; 80s; briely dated main character
1167: From a TV show; based on comics; 00s; Batman; assassin
1168: From a TV show; based on comics; 00s; The Brave and the Bold; leader of government team
1169: Original TV show character; 10s; model
1170: From a commercial; based on comics; 00s; All-Star Comis; spins to transform
1172: Original TV show character; 10s; junkyard owner
1183: From a commercial; based on comics; 10s; Detective Comics; has henchwoman
1190: From a TV show; based on comics; 10s; Doom Patrol; activist
1195: Original TV show character; 20s; wife of villain
1196: Original TV show character; 00s; scientist
1205: From a TV show; based on real person; 20s; writer
1224: Original movie character; 10s; robber
1227: Original TV show character; 00s; owned by major character
1232: From a TV show; based on comics; 90s; Action Comics; non-speaking role (a bit surprising in this context)
1240: From a TV show; possibly inspired by comics character with different name; 10s; Brave and the Bold; geokinesis powers
1243: From a TV show; based on comics; 80s; All-Star Comics; enountered someone tied to train tracks
1244: Original TV show character; 10s; internal affairs officer
1245: Original TV show character; 20s; senator
1246: From a movie; based on comics (probably loosely); 70s; Batman; animal themed character
1250: Original TV show character; 20s; police chief
1251: From a TV show; based on comics; 10s; Detective Comics; government agent under false pretenses
1252: Original TV show character; 10s; daughter of 1126
1254: From a movie; based on comics (slightly different name); 70s; All-Star Comics; seen in non-English language movie
1273: Original TV show character; 80s; restaurant owner
1274: From a TV show; based on comics; 10s; Fury of Firestorm; stunt performer/actor
1282: From a TV show; based on comics; 10s; Batman; private school student
1285: Original TV show character; 10s; clown for hire
1293: Original TV show character; 00s; key associate of secret society
1294: Original TV show character; 10s; soldier turned doctor
1301: Original TV show character; 10s; high school student
1304: Original TV show character; 10s; adoptive daughter of major character
1311: Original TV show character; 00s; personal assistant to major character
1314: From a TV show; based on real person; 20s; part of a royal family
1315: Original TV show character; 10s; private investigator
1321: Original TV show character; 10s; religious leader
1322: From a TV show; based on comics (slightly different surname); 70s; Action Comics; reporter
1328: Original TV show character; 90s; scientist
1337: Original TV show character; 10s; uncle of major villains
1342: Original TV show character but probably named after song; 10s; song is name of character; assassin
1347: Original TV show character; 00s; security guard
1349: From a commercial; based on comics; 00s?; Action Comics; reporter
1362: From a TV pilot; based on comics; 00s; Adventure Comics; appropriately for a character form a pilot, seen flyiung a plane
1363: Original movie serial character; 40s; henchman
1369: Original movie character; 00s; criminal who heard voices in his head
1372: Original TV show character; 10s; armoured truck driver
1373: From a TV show; possibly based on comics (TV version's first name unrevealed); 10s; Detective Comics; mayor
1377: Original TV show character; 00s; principal
1380: From a TV show; based on comics; 00s; Batman; attended some sort of event
1382: Original TV show character; 80s; fiancée of recurring character
1383: Original TV show character; 10s; consulate employee
1385: From a commercial; based on comics; 70s; Action Comics; seen in commercial for a particular day of the year
1388: Original TV show character; 10s; pet given as Christmas gift
1390: From a TV show; based on earlier character same continuity; 10s; led resistance group
1391: From a TV show; based on comics; 20s; speedster
1394: From a TV show; dressed as someone based on comics; 80s; Action Comics; details sparse but I think he was at a costume party
1395: Original TV show character; 70s; played by a very famous movie star
1396: From a TV show; based on comics; 80s; Detective Comics; may have appeared on the news earlier but was definitely seen on a talk show (in real life)
1398: From a commercial; based on comics; 10s; Detective Comics; helped rescue partner from villain
1400: From a TV show; based on comics; 90s; Batman; seen in a diner
1402: From a TV show; dressed as someone based on comics; 20s; Detective Comics; dressed for Halloween
1403: From a commercial; based on comics; 10s; Batman; gets tied up by opponent
1407: From a commercial; based on comics; 00s; Action Comics; makes his costume expand
1409: From a TV show; based on comics; 00s?; Detective Comics; seen in spoof of a certain kind of movie
1410: From a TV show; based on comics; 90s; Detective Comics; attends some sort of event
1412: From a music video; based on comics; 90s; All-Star Comics; possibly other superheroes in same video but due to how everypone's dressed, she's the only one who is reasonably discernable
1413: From a music video; based on comics; 90s; Action Comics; is the subject of the music video
1418: Original movie character; 70s; name is arachnid themed
1421: From probably multiple shows simultaneously; dressed as someone based on comics; 20s; Action Comics; seen at a real life event
1422: From a TV show; based on comics; 00s; Superman's Pal, Jimmy Olsen; crime lord
1423: From a TV show; based on comics; 10s; Superman; some sort of military officer
1427: Original TV show character; 10s; had magic powers
1433: From a TV show; dressed as someone based on comics; 20s; Detective Comics; major character on show
1435: Original TV show character; 20s; while original, shares name with someone from mythology
1436: From a commercial; claimed to be someone based on comics; 90s; Detective Comics; not dressed as the superhero he claims to be
1440: From a TV show; based on comics; 00s; Action Comics; counterpart of major character
1444: Original TV show character; 90s; once had diary written by time travelling villain
1445: From a TV show; based on comics; 20s; All-Star Squadron; powers more or less the opposite of sibling's

1444 Jason Mayzik, Lois and Clark

1422 Morgan Edge, Smallville

1167 and 1168 were identified previously (Deadshot and Rick Flagg, both Smallville)

1240 Brandon Marshall, Black Lightning

1245 Royland Goff, Peacemaker

1274 Blue Devil, Swamp Thing 2019

1289 - no clues provided

1311 Gina, Smallville

1314 Sophie, Duchess of Hohenberg, Legends of Tomorrow

1373 Burke, Gotham

1383 Stanley Gibson, Constantine TV

Latest answers correct; list updated. I'll update the clues list in a few minutes.