1659 Corinne Wan, Venom

1663 Norman Osborn, ASM 2

1669 Vido Arocho, Jessica Jones

1672 Cornelius P Willows, She-Hulk

Cleaned up main clues (will recalculate the tally later):

1505. From a TV show; based on comics; 00s; Amazing Fantasy - Stan Lee, Steve Ditko; No; unrevealed, possible student; New York City?; holds a giant toothbrush at one point SPI***-MA* (I won't ID the show but I'll add what the bit is called: SPI***-MA* M******)
1521. From a commercial; based on comics; 80s; Incredible Hulk - Stan Lee, Jack Kirby; unrevealed; United States; this is one instance where I used a loophole to get around my rule of not using characters from commercials played by the original actor **LK / S*A*S
1611. From a commercial; based on comics; 00s; Amazing Spider-Man - Gerry Conway, John Romita; criminal; New York City; waved tommy gun around *AMM****A*
1658. From a commercial; based on comics; 00s; Fantastic Four - Stan Lee, Jack Kirby; presumed student; New York City?; battled main villain (kind of) I*VISIBL* WOMA*
1677. Original TV show character; 10s; Yes; terrorist group member turned personal aide; New York State; got a phone call informing her that targes had been spotted *A**I** L**
1678. Original short character; 10s; Yes; business pet; United States; "actor" shares name with a Royal Family of the Inhumans member BA* M*OK*Y
1684. From a commercial; based on comics; 00s; Incredible Hulk - Stan Lee, Jack Kirby; unrevealed; United States; attended anger management session **LK / MO**TAI* **W
1688. Original TV show character; 10s; Yes; probable student; New York City; potentially lost his ability to stand and walk after he was exposed to a substance AA*O* *AM**
1689. Original TV show character; 10s; Yes; high school principal; Los Angeles; at school's annual Open House, Tezuka gave a speech to the parents of its students. MS. T*Z*KA
1695. Original TV show character; 10s; Yes; hospital clerk; New York City; helped unwell man and nurse after the man fell into the nurse and her cart A*GI*
1697. From a movie; based on comics; 00s; Daredevil - Roger McKenzie, Frank Miller; No; bar owner; New York City; served a recently acquitted man *OSI*
1698. Original TV show character; 10s; Yes; police officer of sorts also paid by technology company; Italy; doublecrossed main characters in a train mission L**A **SSO
1699. Original TV show character; 10s; Yes; Spanish teacher; Los Angeles; gave major character a C after an exam WALT**
1700. Original movie character; 10s; No; student if any; New York City; bullied by a group of kids when main character intervened and scared off the bullies *O*G*
1706. From a movie; based on real person; 00s; No; TV reporter; Los Angeles; worked for a different organization in a sequel than in an earlier movie LA**** SA****Z
1707. Original TV show character; 10s; Yes; convenience store employee; Cincinnati; villains robbed his store for supplies AMI* [LOCKED; one letter remaining; can rule out XQZPBIYGVASKWLM]
1708. Original TV show character; 10s; Yes; car thief; New York City ; with ally, picked the wrong car to try to steal L*AT*** *OAT
1709. Original TV show character; 10s; Yes; illicit photo studio owner; New York City; his studio specialized in sexual photographs of underage girls for profit *LIV*
1710. From a TV show; shares name with comics based characters but likely a coincidence; 10s; one version from Fallen Angels; No; high school student/cheerleader; New York City; was at cheer practice whilst high school basketball team practiced A*I*L
1712. Original movie character; 10s; No; arms dealer; Turkey?; worked with super-villain TOMA *IKAS*VI*
1714. Original TV show character; 20s; Yes; cultist; London; carried a crate of tomatoes **AS*
1715. Original TV show character; 10s; Yes; unrevealed; United States; wedding guest who may have been able to resist the effects of a poison due to her alcoholism building up a tolerance *I***
1716. Original TV show character; 10s; Yes; criminal figure; New York City; foced to attend major villain's wedding L*TI*** ZYL
1719. Original TV show character; 10s; Yes; drug dealer; New York City; supplied supporting character with drugs until he ran out of money TW*AKY   [LOCKED; one letter remaining; can rule out XQZPBIYGVASKWLMOT]
1721. Original TV show character; 10s; Yes; medical academy student; New York City; her father loved to watch her play the violin *ATALIA POLOZ**VA
1723. From a TV show; shares name with comics based characters but likely a coincidence; 20s; earliest such character probably from X-Men; Yes; cultist; Egypt; with others, captured and murdered main character's informant before he could talk ALP*A [LOCKED; one letter remaining; can rule out XQZPBIYGVASKWL]
1724. From a TV show; birth name based on comics; 10s; Captain America - Dan Jurgens, Jerry Ordway; Yes; special organization agent turned welder; United States; his original name was shared by someone else who worked for the same organization (likely the writers overlooked the fairly minor earlier character) *AM**O* KL*I* aka *A*K T*OMPSO*
1725. Original TV show character; 10s; Yes; marijuana trafficker; Oahu; attacked by major character and someone else but he managed to capture them T*A   [LOCKED; one letter remaining; can rule out XQZPBIYGVASKWLMOT]
1726. Original movie character; 00s; No; unemployed; New York City; ex-wife of major villain *MMA MA*KO
1728. Original movie character; 20s; Yes; unrevealed; Norway; wife of someone from myths G*A**
1730. Original movie character but named after character from non-Marvel TV sitcom 10s; decline to answer as earlier version is also name of show; No; house pet; San Francisco; the same cat previously played another character in another Marvel continuity; a lot of the odder worded broad clues relate to the earlier show's theme song M*. B*LV*****
1732. From a movie; based on comics; 10s; Tales of Suspense - Stan Lee, Larry Lieber, Don Heck, Jack Kirby; Partial; inventor, industrialist, chairman, electrical engineer, adventurer; New York City; diverged from main version shortly after a battle; time travel involved in divergence I*O* MA*
1734. From a TV show; based on earlier character same show; 20s; Partial; soldier; [decline]; counterpart of someone who collects and files evidence ***T** K-#*
1736. Original TV show character; 10s; Yes; police detective; Los Angeles; put in charge of the investigation on someone's death and issued a public statement indicating that he suspected the main characters of being involved with the death **T**TI** *LO**S
1738. Original TV movie character; 20s Yes; musician; [decline]; given a song written by the band leader about a holiday KO*TOLBOOKALIA  [LOCKED; one letter remaining; can rule out XQZPBIYGVASKWLMOT]
1739. From a TV show; based on real person; 10s Yes; musical performer; Harlem; hired to perform at nightclub WILLIAM *A*T
1741. Original movie character; 10s Yes; probable student; Tennessee; major ally of main character *A*L*Y K*****
1742. Original TV show character; 20s Yes; criminal soldier; Zürich; helped rob a bank
1744. Original TV show character; 10s Yes; unrevealed, possible housewife; Albany; became addicted to meth and neglectful of her son's needs ***LA **SSO
1745. Original TV show character; 10s; Yes; oil rig worker; Louisiana; got a nickname from the severe burn he suffered during an accident MO*SI**** *LAMB*
1746. Original TV show character; 10s Yes; unrevealed; New York City; helped family member move into his new apartment as a super MA*I*A
1747. From a TV show; based on earlier character same continuity; 10s; Partial; unrevealed; New Orleans; noticed main character had boyfriend's wallet MIKAYLA B*LL [LOCKED; one letter remaining; can rule out XQZPBIYGVASKWLM]

Locked Characters:
1707
1719
1723
1725
1738
1747

Others that should be pretty easy now (remember the first word is sometimes just a salutation or "The"):
1521
1658
1678
1684
1730
1732

 

Cleaned up tally and broad clues:
Name    #
Agents of SHIELD    5
Jessica Jones    3
Punisher TV    3
Runaways    3
Cloak & Dagger    2
Moon Knight    2
Amazing Spider-Man (2012)    1
Avengers: Endgame     1
Conan    1
Daredevil movie    1
Daredevil TV    1
Defenders    1
Falcon and the Winter Soldier    1
Fantastic Four (2005)    1
Fantastic Four Burger King Kids Meal & Green Icee commercial (2005)    1
Ghost Rider: Spirit of Vengeance    1
Guardians of the Galaxy Holiday Special    1
Inhumans    1
Iron Fist    1
Iron Man 3    1
Loki    1
Luke Cage    1
Marvel One-Shot: All Hail the King    1
[soft drink commercial]    1
[department store commercial]    1
Spider-Man : Turn Off The Dark Commercial    1
Spider-Man 3    1
The Amazing Spider-Man 2    1
Thor: Love & Thunder    1
Venom    1

Previous broad clues:

Hare are a few more board clues, which may or may not also relate to previous board clues. Maybe these will help and if so maybe we might live the good life yet.

Life is more than mere survival so I want to help with clues where I can, but I don't want to just give away the answers.

Sometimes things get turned around and no one's there (wonder if people have figured out why I've been doing these odd phrasings).

Two characters diverged from their main MCU counterparts at the same time (one was recently found).

One character is from a D'Spayre reality

Many of these are tough and you might be thinking, "Going to need all the help that we can get".

Going from memory, at least one more variant aside from the already found Jane Foster are from Avengers: Endgame.

The Conan character is not from the Batman Wants to Join the Marvel Universe skit.

For one non-human character, the type of animal/creature it is is in its name.

The Conan skit plays on something covered by one of the commercials another character in this collage is from.

Hangman clues:
Three letter words are often "The".
The first word is often the previously identified salutation or rank (e.g. Doctor, Captain, Detective).

 

1678 Bar Monkey, All Hail the King

1689 Ms Tezuka, Runaways

1698 Luca Russo, AoS

1700 Jorge, ASM 2

1714 Chase, Moon Knight

1716 Latimer Zyl, DD TV

1721 Natalia Polozneva, Punisher TV

1730 Mr Belvedere, Venom

1741 Harley Keener, Iron Man 3