He recently guest starred as Martin, a magazine reporter, on an episode of Ruby & the Rockits entitled "We Are Family? In 2010, Ruck was cast as a lead character in the NBC mystery-drama, Persons Unknown.
He also guest-starred on the television show Fringe as a scientist turned criminal, in the NCIS: Los Angeles season two episode "Borderline", and guest-starred as ex-money laundering accountant turned dentist, on an episode of Justified entitled "Long in the Tooth".
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).
In 2016, he co-starred with Geena Davis in an updated Fox TV adaptation of William Peter Blatty's best-selling novel The Exorcist.
He also appeared in the Grey's Anatomy season five episode "In The Midnight Hour".
In 2012, Ruck was cast in the ABC Family series Bunheads as the husband to Sutton Foster's character, Michelle.
And I guess about a year after I was out of school, I got my first job.
In his initial foray into film acting, Ruck appeared in Class and Hard Knocks as well as some television films.Ruck was then cast in the pilot of the Tim Minear-created Fox Network series Drive, but did not appear in the actual series.He also starred in one episode of the Comedy Central sitcom Stella as Richard, a man looking for work.He appeared in the series Daddy's Girls in 1994, which was canceled after three episodes.From 1996 to 2002, Alan played Stuart Bondek in the sitcom Spin City alongside Michael J. In 2005, he played Leo Bloom in the Broadway version of Mel Brooks' The Producers, a role also played by his Ferris Bueller co-star, Matthew Broderick.