Lou Ferrigno

Lou Ferrigno voiced Hulk in The Incredible Hulk, The Avengers and Avengers: Age of Ultron. He also made a cameo as a Security Guard at Culver University in The Incredible Hulk.

Trivia

Lou Ferrigno is best known for his portrayal of Hulk in the TV series The Incredible Hulk, that was followed by three TV movies.
Lou Ferrigno also voiced Hulk in the TV animated series The Incredible Hulk, alongside Neal McDonough as Bruce Banner.
Lou Ferrigno also appeared in a cameo as a Security Guard in Hulk alongside Stan Lee also playing a security guard.
Lou Ferrigno is the father of Lou Ferrigno Jr., who appeared in the Agents of S.H.I.E.L.D. episode The Things We Bury.
Lou Ferrigno was uncredited for his role in Avengers: Age of Ultron.
While it was said that Lou Ferrigno returned to his role in Thor: Ragnarok , Mark Ruffalo has since confirmed he voiced the character in the film and will remain the voice in future films. Ferrigno was also spotted posing with Tom Hiddleston on set in a costume for a possible cameo that was presumably cut from the film.