647 Tina Adams, Agents of SHIELD

Cleaned up clues:

419. Original TV show character; 10s; attended sister's graduation; sister is major character but he isn't
446. Original movie character; 10s; assisted major villain in several crimes before being betrayed by him
468. Original TV show character; 70s; former child star turned villain
485. Original movie deleted scene character; 00s; attacked by main villain; doctor (likely in the scientist sense)
488. Original TV show deleted scene character; 10s; criminal scientist researching a drug
489. Original TV show character; 10s; recruited to help rebuild a club; squeezed black object and turned it into a diamond
494. Original TV show character; 10s; Defense Secretary active in 1980s
495. Original TV show character; 10s; part of a  dance club; thrown in air by major character
510. Original movie character; 10s; assisted husband in recreating a gateway, resulting in an explosion
516. Original TV show character; 10s; medical doctor in a secret remote location
519. Original TV show character; 10s; criminal; tried to rob a store but stopped by main character
520. Original TV show character; 10s; resident of a bunker in a future time
523. Original TV show character; 10s; attempted to arrest major character, initially thinking he was drunk
570. Original TV show character; 10s; reporter asked to go to a firre department with other reporters.
572. Original TV show character; 10s; police officer who investigated an incident involving a crime syndicate
575. Original TV show character; 10s; tried to apprehend major character in the 1980s
596. Original movie character; 10s; high school student; attacked in Venice
609. From a commercial; based on mythology; 10s; Norse mythology; seen by heroes in the distance; apparently about to fight heroes in a store when last seen
610. Original movie character; 10s; apparent prostitute; with another woman slept with a guy until main character showed up and ordered both women out
612. Original TV show character; 10s; police officer providing security but women they were supposed to protect escaped by pretending to need alone time using the bathroom
614. Original TV show character; 10s; interrogated by police over husband's crimes; later visited by a vigilante posing as a police officer
615. Original TV show character; 10s; police officer guarding part of a hospital trying unsuccessfully to prevent major character's escape
624. Original movie character; 20s; with a female friend, witnessed a cosmic being's arrival on Earth
625. Original movie character; 10s; co-worker/friend of major character; FBI agent
636. From a TV show; based on comics; 10s; Patsy Walker; hired to build a building but later planned to destroy structure to keep secrets within the hole buried
642. Original TV show character; 10s; member of some sort of Armed Forces; helped take over mobile base from major characters
643. Original movie character; 00s; worked in some capacity for TV news organization; drove major character in his van
645. Original TV show character; 20s; harassed major character; lost powers due to a history change
662. Original TV show character; 10s; corrections officer; trying to keep major villain imprisoned
664. Original TV show character; 10s; high-ranking army officer; given tour of munitions facility
665. From a commercial; based on comics; 00s; Amazing Spider-Man; uses some sort of aerial device; also seen magnified on multi-section screen
667. Original TV show character; 20s; police officer who had to keep large group of civilians at bay
668. Original TV show character; 10s; police officer contact after someone's encounter with a large dog
669. Original TV show character; 10s; FBI agent assigned to supervise protection for someone; got lawyers through security
670. Original movie character; 10s; scientist using human subjects to test aliens
672. Original movie character; 00s; has tattoos; main character tells him he shouldn't play with knives
673. Original movie character; 00s; general/part of secret government program; ordered someone to end experiments
677. Original TV show character; 10s; imitated a punishment he was witnessing; asked masked woman who she was
696. Original TV show character; 10s; took part in a clash with a robot along with major characters at a top secret facility
701. Original TV show character; 10s; criminal engineer; betrayed by a double agent on the side of good
707. Original TV show character; 10s; probably hasn't been to Earth; a synonym for his name might be "oily sphere"
722. Original TV show character; 10s; cop who with partner  encountered main character whom they suspected was intoxicated and unsuccessfully tried to cuff him
728. Original TV show character; 10s; criminal scientist; life saved by human subject
743. Original movie character; 10s; patient  whose doctor is the fiance of major character's ex
749. From a commercial; based on comics but gender swapped; 10s; Incredible Hulk; initially tired; most looks like comics version in arms (at one point)
759. Original movie character ; 10s; thug who roughed up girlfriend until main character interjected
769. Original movie character ; 10s; artificial intelligence; asked my major characters to bring the elevator to their requested floors
777. Original TV show character; 00s; has cyberkinesis and superhuman stamina; shot with tranquilizer dart
779. Original TV show character; 10s; trained/prepared to become clan member; at a dojo was told to try to surprise attack someone
786. Original TV show character; 10s; former crime leader; made truce with main character against a common foe
789. Original TV show character; 10s; former supporter of a foundation; often hit his wife, causing their divorce
804. Original movie character; 00s; postal service worker
819. From a commercial; based on comics; 00s; Amazing Fantasy; watched another version of himself on TV
826. From a commercial; based on comics; 10s; Amazing Fantasy; used bait to lure criminal

Tally (I might to retally again at some point):
Agents of SHIELD    9
Jessica Jones    4
Luke Cage    4
Amazing Spider-Man (2012)     3
Daredevil TV    3
Punisher (2004)    2
Venom    2
Ant-Man and the Wasp    1
Black Panther    1
Captain Marvel    1
[cracker commerical]    1
Cloak & Dagger    1
Defenders    1
[chips commercial)    1
Electric Company    1
Eternals    1
Ghost Rider    1
Gifted    1
Hawkeye    1
Incredible Hulk (2008)    1
Inhumans    1
Iron Man 3    1
Ms Marvel    1
Punisher TV    1
Runaways    1
She-Hulk: Attorney at Law     1
Spider-Man 3    1
Spider-Man: Far From Home    1
[commercial for live show; not Marvel Universe Live]    1
[department store commercial]    1
X2: X-Men United    1
X-Men: Apocalypse    1
[supplement commercial with particularly bad acting]    1

 

485 Phil Wallace, Spider-Man 3

495 Christina, Runaways

523 Herrera, Luke Cage

610 Vanessa, Iron Man 3

Latest answers correct; list updated. Comics Vine was giving me an error message ("Error uploading images: There is no connection to the queue service.") so for now I placed a Google Drive link instead.

https://drive.google.com/file/d/1Y_IeV3XehaB2SKo07-Lz1k1lw9_xEHCB/view?usp=share_link

468 Winky Goodshoes, Electric Company

777 Jones, X-Men 2

643 Stuart, Ghost Rider

804 Bezerra, Incredible Hulk movie

624 Ted, Eternals

Cleaned up clues:

419. Original TV show character; 10s; attended sister's graduation; sister is major character but he isn't
446. Original movie character; 10s; assisted major villain in several crimes before being betrayed by him
488. Original TV show deleted scene character; 10s; criminal scientist researching a drug
489. Original TV show character; 10s; recruited to help rebuild a club; squeezed black object and turned it into a diamond
510. Original movie character; 10s; assisted husband in recreating a gateway, resulting in an explosion
516. Original TV show character; 10s; medical doctor in a secret remote location
519. Original TV show character; 10s; criminal; tried to rob a store but stopped by main character
572. Original TV show character; 10s; police officer who investigated an incident involving a crime syndicate
575. Original TV show character; 10s; tried to apprehend major character in the 1980s
596. Original movie character; 10s; high school student; attacked in Venice
609. From a commercial; based on mythology; 10s; Norse mythology; seen by heroes in the distance; apparently about to fight heroes in a store when last seen
612. Original TV show character; 10s; police officer providing security but women they were supposed to protect escaped by pretending to need alone time using the bathroom
614. Original TV show character; 10s; interrogated by police over husband's crimes; later visited by a vigilante posing as a police officer
636. From a TV show; based on comics; 10s; Patsy Walker; hired to build a building but later planned to destroy structure to keep secrets within the hole buried
642. Original TV show character; 10s; member of some sort of Armed Forces; helped take over mobile base from major characters
645. Original TV show character; 20s; harassed major character; lost powers due to a history change
662. Original TV show character; 10s; corrections officer; trying to keep major villain imprisoned
664. Original TV show character; 10s; high-ranking army officer; given tour of munitions facility
665. From a commercial; based on comics; 00s; Amazing Spider-Man; uses some sort of aerial device; also seen magnified on multi-section screen
667. Original TV show character; 20s; police officer who had to keep large group of civilians at bay
668. Original TV show character; 10s; police officer contact after someone's encounter with a large dog
669. Original TV show character; 10s; FBI agent assigned to supervise protection for someone; got lawyers through security
670. Original movie character; 10s; scientist using human subjects to test aliens
677. Original TV show character; 10s; imitated a punishment he was witnessing; asked masked woman who she was
696. Original TV show character; 10s; took part in a clash with a robot along with major characters at a top secret facility
701. Original TV show character; 10s; criminal engineer; betrayed by a double agent on the side of good
707. Original TV show character; 10s; probably hasn't been to Earth; a synonym for his name might be "oily sphere"
722. Original TV show character; 10s; cop who with partner  encountered main character whom they suspected was intoxicated and unsuccessfully tried to cuff him
728. Original TV show character; 10s; criminal scientist; life saved by human subject
743. Original movie character; 10s; patient  whose doctor is the fiance of major character's ex
749. From a commercial; based on comics but gender swapped; 10s; Incredible Hulk; initially tired; most looks like comics version in arms (at one point)
759. Original movie character ; 10s; thug who roughed up girlfriend until main character interjected
769. Original movie character ; 10s; artificial intelligence; asked my major characters to bring the elevator to their requested floors
779. Original TV show character; 10s; trained/prepared to become clan member; at a dojo was told to try to surprise attack someone
786. Original TV show character; 10s; former crime leader; made truce with main character against a common foe
789. Original TV show character; 10s; former supporter of a foundation; often hit his wife, causing their divorce
819. From a commercial; based on comics; 00s; Amazing Fantasy; watched another version of himself on TV
826. From a commercial; based on comics; 10s; Amazing Fantasy; used bait to lure criminal

Tally (I might to retally again at some point):
Agents of SHIELD    8
Jessica Jones    4
Amazing Spider-Man (2012)     3
Luke Cage    3
Daredevil TV    2
Venom    2
Ant-Man and the Wasp    1
Black Panther    1
Captain Marvel    1
[cracker commerical]    1
Cloak & Dagger    1
Defenders    1
[chips commercial)    1
Gifted    1
Hawkeye    1
Inhumans    1
Ms Marvel    1
She-Hulk: Attorney at Law     1
Spider-Man: Far From Home    1
[commercial for live show; not Marvel Universe Live]    1
[department store commercial]    1
[supplement commercial with particularly bad acting]    1

 

645 Todd Phelps, She-Hulk

670 Collins, Venom