Johnny Depp is a "surprise guest star" in an upcoming film! Which comedian will he be joining onscreen?

MTV News reports that Johnny Depp will cameo in Adam Sandler's 'Jack and Jill.' The film's director Dennis Dugan told MTV on Tuesday, "There's a secret guest star, but I can't say who it is," before giving in and revealing that Johnny Depp is the mystery man.

Adam reportedly plays a set of male/female twins in the film, and when asked what Adam looks like as a woman, Dugan replied, "Not [like] Brooklyn Decker in 'Just Go with It.'"

Related stories on Aniston and Adam Sandler Still Have Football Fever

WATCH: Justin Bieber's Not-So-Sudden Rise to Stardom