Seth Green

Seth Green voiced Howard the Duck in Guardians of the Galaxy and Guardians of the Galaxy Vol. 2. He also had an uncredited cameo as an Expo Fan in Iron Man 2.

He was interviewed for the documentary Marvel 75 Years: From Pulp to Pop.

Trivia

Seth Green is the husband of Clare Grant.
Seth Green is one of the actors who have portrayed multiple characters in the Marvel Cinematic Universe.
Seth Green previously worked with James Gunn in Scooby-Doo 2: Monsters Unleashed.
Seth Green previously worked with Joss Whedon in Buffy the Vampire Slayer.
Seth Green also voiced Rocket Raccoon in Hulk and the Agents of S.M.A.S.H. and Avengers Assemble and Rick Jones in Hulk and the Agents of S.M.A.S.H. and Ultimate Spider-Man.
Seth Green voice an alternate version of Howard the Duck in Ultimate Spider-Man.
Seth Green is one of the few ators to portray characters for both Marvel Studios and DC Entertainment. He voiced Wizard in Batman: The Animated Series and Nelson Nash and Dempsey in Justice League: The New Frontier.
Seth Green also voiced Leonardo in the comic book adaptation Teenage Mutant Ninja Turtles.