sentences:  Early in his acting career, in the 1990s through the mid 2000s, Letts acted in TV shows including "Prison Break", "The District", "Strong Medicine", "Profiler", "Judging Amy", "The Drew Carey Show", "Seinfeld", "Early Edition", and "Home Improvement".In 2013-14, Letts joined the cast of Showtime's "Homeland" as US Senator Andrew Lockhart.He was nominated with the rest of the cast for the Screen Actors Guild Award for Best Ensemble.