Mark Ruffalo, who stars as The Hulk/Dr. Bruce Banner in Avengers: Age of Ultron, participated in a Reddit AMA and was asked who his top choice would be for Banner's cousin Jennifer Walters, also known as She-Hulk.

"Oh wow, that's pretty crazy. Well I think Zoe Saldana would be a great She Hulk," Ruffalo replied. "It'd be nice to see someone like her join the Avengers. Or someone quiet and demure like Emma Stone would be nice. But it would be up to the powers that be."

It is virtually impossible for his Infinitely Polar Bear co-star to play She-Hulk since Saldana already plays the green-skinned Gamora (Guardians of the Galaxy) in the Marvel Cinematic Universe. Keep in mind, Ruffalo is just thinking about who he thinks is the best choice - regardless of logic.

Emma Stone (The Amazing Spider-Man) is a fun choice. Yes, she too has already been in two Marvel films but that was pre-Sony-Marvel deal. So her Gwen Stacy was never a part of the MCU. She's fair game to be She-Hulk.

She-Hulk was created by Stan Lee and John Buscema and first appeared in She-Hulk #1 (February 1980). When Jennifer Walters was seriously injured in an accident her cousin Bruce gave her a blood transfusion that ended up infusing her with a milder version of his Hulk-like powers. She got his strength, but kept her wits.

Avengers: Age Of Ultron is currently playing at your local theater.