He is portrayed by Jesse Spencer.

Caitlin makes finding a boyfriend her priority and she set her sights on her training partner, Billy Kennedy (Jesse Spencer).

Jesse Spencer as Lieutenant Matthew Casey, Truck 81.

It stars Jesse Spencer, Geoffrey Rush, and Judy Davis.

He would often be played as the "third-wheel" alongside Billy Kennedy (Jesse Spencer), who was more popular with female characters.

At the end of the episode, Chase (Jesse Spencer) suggests that he and Cameron (Jennifer Morrison) take their relationship to the next level.

Jesse Spencer as Dr. Robert Chase (22 episodes)

Jesse Spencer as Dr. Robert Chase: A member of House's diagnostic medicine team.

Played by Jesse Spencer.

Actor Jesse Spencer.