Omar Epps played diagnostician Eric Foreman in House M.D.
Foreman is a neurologist and one of the original members of House's diagnostic team. He is intelligent, ambitious, and often more cautious about House's methods than House himself. His professional relationship with House evolves as Foreman gains experience and takes on leadership duties.
The character's surname is Foreman, while his first name is Eric. The question specifies the surname because the series commonly refers to him simply as “Foreman.” This can be confused with other team members whose surnames also became familiar to viewers, including Chase, Taub, and Kutner.
Epps's work on the show followed film roles such as Q in Juice and Will in Love & Basketball. In House M.D., he remained a major cast member for the full series run and was also credited as a producer during later seasons. Foreman's specialty is neurology, not diagnostic medicine as a department.