Alan Douglas Ruck (born July 1, 1956) is an American actor. He played Cameron Frye, Ferris Bueller's hypochondriac best friend in
John Hughes'
Ferris Bueller's Day Off (1986), and Stuart Bondek, the lecherous, power-hungry member of the mayor's staff in the
ABC sitcom
Spin City. His other notable films include
Bad Boys (1983),
Three Fugitives (1989),
Young Guns II (1990),
Speed (1994),
Twister (1996), and
Kickin' It Old Skool (2007).