Richard Riehle, a prolific character actor known for his extensive work in film, television, and theater, died on October 15 at the age of 78. The news was confirmed by his talent agencies, though no cause of death or additional details were provided.

Born on May 12, 1948, in Menomonee Falls, Wisconsin, Riehle was the eldest of six children. Following the death of his father when he was 13, he took on work at a grocery store to help support his family. Initially entering a seminary with plans to become a priest, he left that path after reconsidering his calling. Riehle then enrolled at the University of Notre Dame, where he engaged extensively in acting, directing, and stagecraft, later earning a master’s degree in fine arts from the University of Minnesota.

Riehle’s career spanned nearly five decades and included more than 400 credits, ranging from regional theater to Broadway and screen roles. His Broadway appearances included productions such as the 1999 revival of “The Iceman Cometh” alongside Paul Giamatti. He worked steadily in television, with guest spots on series like “L.A. Law,” “Quantum Leap,” “Murder, She Wrote,” “The West Wing,” and “One Life to Live.” He also appeared in the TV adaptation of “Ferris Bueller’s Day Off” as a high school principal.

His filmography featured a variety of supporting roles, often portraying authority figures or characters with a distinct affable or blustery presence. Early on, he appeared as a quartermaster in the 1989 Civil War drama "Glory," and later took roles in “The Fugitive,” “Casino,” and “Black Rain.” Riehle was also known among science fiction fans for appearing in three different “Star Trek” television series: “The Next Generation,” “Voyager,” and “Enterprise.”

Among his memorable performances was the character Tom Smykowski in the 1999 cult comedy “Office Space,” directed by Mike Judge. Riehle’s portrayal of an anxious product manager facing layoffs became widely recognized and beloved for capturing the frustrations of corporate life with a blend of humor and pathos. In the film, Tom struggles with job insecurity and eventually pursues a quirky entrepreneurial idea after a hit-and-run accident leads to a financial settlement.

Riehle’s talent agencies described him as not only a consummate actor but also a generous and supportive colleague, noted for encouraging emerging actors and filmmakers throughout his career. At the time of his death, he had roles in several completed or forthcoming films.

No further information about surviving family members has been released.