Joseph Gordon-Levitt

Action

 * In 2009, played super bad guy Cobra Commander in the action film G.I. Joe: The Rise of Cobra. His character was credited as the Doctor and as Rex.


 * played a character named John Blake in the 2012 Christopher Nolan film The Dark Knight Rises, which is the third and final installment in Nolan's Batman series.

Sci-Fi

 * is best known for playing the role of elderly/adolescent alien Tommy Solomon on the 1996-2001 sci-fi sitcom 3rd Rock from the Sun.


 * played a character named Kyle in the "Permanent Wave" episode of Quantum Leap.


 * played a character named Zack in the "Something About Harry" episode of the 1995 relaunch of The Outer Limits.