Which House M.D. character was played by Kal Penn?

Kal Penn played Dr. Lawrence Kutner in House M.D.

Kutner joins Gregory House’s diagnostic team during the fourth season after House recruits a new group of fellows. He is presented as an energetic and inventive physician who often proposes unconventional possibilities. Kutner’s medical background is sports medicine and rehabilitation, although his work with House involves broad diagnostic reasoning.

Kal Penn’s departure from the series was connected to his decision to work in the administration of U.S. President Barack Obama. The show wrote Kutner’s sudden death into the story, and the character’s absence became a major emotional and investigative thread for House and the rest of the team.

Kutner is sometimes confused with Chris Taub because both are members of House’s later diagnostic teams. Taub was played by Peter Jacobson. Martha Masters, another fellow, was played by Amber Tamblyn, while Michael Tritter was a recurring patient and antagonist played by David Morse.