Watch: Chris Evans and Brother Get to Know Each Other on 'Tonight Show'

Chris Evans stopped by "The Tonight Show" hosted by Jimmy Fallon to play a game of "Know Your Bro" along with his out brother Scott.

In the game, the brothers are tested to see how well they know each other. One brother wears noise-cancelling headphones while they other is asked a question. Then, the other brother tries to guess the answer.

Among the questions Fallon asked the duo: What would Scott be if he weren't an actor, what's something Chris did growing up that their parents still don't know about, and what's Scott's most embarrassing childhood memory.

Watch the clip below to see how it played out.