Most Marvel characters in a videogame

Most Marvel characters in a videogame
Who
LEGO® Marvel's Avengers
What
206 total number
Where
Not Applicable
When
31 August 2016

Excluding alternative costumed versions of the same character, some 206 heroes, villains and sidekicks from the Marvel cinematic universe and comic-books had been packed into LEGO Marvel Avengers (TT Games, 2016), as of August 2016. Characters range from the well-known (Captain America, Black Widow, Daredevil and Thor) to the less familiar (Devil Dinosaur, Fandral, Union Jack and Moon-Boy). New DLC often introduces new stars to the superheroic mix.

The same game holds the record for most playable characters in an action-adventure videogame.