Richard Riehle was an actor who worked in television, film, and theater. He played Walt Finnerty on all five seasons of Grounded for Life and Principal Ed Rooney on the NBC adaptation of Ferris Bueller's Day Off. Riehle guest-starred on numerous television series including Star Trek: The Next Generation, Buffy the Vampire Slayer, Barry, and Modern Family.

Riehle also enjoyed a prolific film career alongside his work in television. He was perhaps best known for playing Tom Smykowski in Office Space. Riehle's other film credits include Casino, Bridesmaids, The Man from Earth, Of Mice and Men (1992), and Fried Green Tomatoes.

Riehle made his Broadway debut in Execution of Justice in 1986. He went on to play Pat McGloin in a 1999 revival of The Iceman Cometh, a production which received five Tony Award nominations.