Walter Stacy Keach Jr. (born June 2, 1941) is an American actor and voice actor. He has played mainly dramatic roles throughout his career, often in law enforcement or as a private detective. His most prominent role was as Mickey Spillane's fictional detective Mike Hammer, which he played in numerous stand-alone television films and at least three different television series throughout the 1980s and 1990s. The role earned him a Golden Globe Award nomination in 1984. He has appeared as the lead in films such as Fat City and The Ninth Configuration. He has also performed as a narrator for programs including CNBC'S American Greed (2008–) and various educational television programs. Comedic roles include Ken, the father of comedian Christopher Titus in the FOX sitcom Titus (2000–2002), and as Sergeant Stedenko in Cheech & Chong's films Up in Smoke (1978) and Nice Dreams (1981). Keach won a Golden Globe Award and was nominated for a Primetime Emmy Award for the television miniseries Hemingway (1988). He is an inductee of the Theatre Hall of Fame and was honored with a star on The Hollywood Walk of Fame in 2019.