Kenneth Edward Olin is an American actor, television director, and producer. As an actor, Olin is known for his role as Michael Steadman in the ABC drama series Thirtysomething (1987–1991), for which he received a Golden Globe Award for Best Actor – Television Series Drama nomination in 1990. Olin later began working behind the scenes, as a director and producer. His credits as a producer include Alias (2001–2006), Brothers & Sisters (2006–2011), and This Is Us (2016–2022). Olin is married to actress Patricia Wettig.

Thirtysomething is an American drama television series created by Edward Zwick and Marshall Herskovitz for United Artists Television and aired on ABC from September 29, 1987, to May 28, 1991.