Acted in the CBS TV-movie "Thursday's Child"; earned a Golden Globe nomination for Best Supporting Actor in a TV movie
Garnered praise for his featured role in Mike Myers' "Wayne's World"
Played a wealthy prep-school student whose mother (Jacqueline Bisset) carries on an affair with his roommate (Andrew McCarthy) in "Class"
Portrayed a deaf mute in the ABC miniseries version of "Stephen King's The Stand"
Starred in the short-lived CBS drama "Dr. Vegas"; also produced
Featured alongside other twentysomething actors (including Demi Moore, Emilio Estevez and Andrew McCarthy) in "St. Elmo's Fire"
Co-starred with Natasha Richardson and Maggie Smith in a small screen remake of "Suddenly Last Summer" (PBS)
Had an uncredited cameo in "Tommy Boy," starring "SNL" cast members David Spade and Chris Farley
Had supporting role in "A View From the Top"
Made disastrous appearance on the 61st Academy Awards telecast performing a duet with an actress playing the part of Snow White
Put his notable impersonation of Robert Wagner to good use with a featured role in Myers' "Austin Powers: The Spy Who Shagged Me"
Co-starred with Aaron Eckhart in Jason Reitman's satirical comedy "Thank You for Smoking"
Had a villainous turn opposite James Spader in "Bad Influence"
Landed starring roles in "Youngblood" (with "The Outsiders" co-star Patrick Swayze) and "About Last Night" (with "St. Elmo's Fire" co-star Demi Moore)
Joined the NBC comedy "Parks and Recreation" as a state employees brought in to fix Pawnee's budgetary crisis
Played a NYC detective tempted to corruption in the TNT original movie "Framed"
Played an American attending the famed British university in "Oxford Blues"
Reprised his role as Sam Seaborn, the senior political official for the final episodes of NBC's "The West Wing"
Starred and executive produced the short-lived NBC drama "The Lyon's Den"
Wrote and directed the short film "Desert's Edge" (aired on the Showtime series "Directed By")
Earned critical praise for his performance as a mentally-challenged youth in "Square Dance"
Featured opposite Jodie Foster and Nastassja Kinski in the film adaptation of John Irving's "The Hotel New Hampshire"
Played the title role in the ABC Afterschool special "Schoolboy Father"
Starred in the thriller "Masquerade" opposite Meg Tilly
Co-starred in Mark Pellington's "I Melt with You"
Joined the cast of the sitcom "The Grinder"
Cast on ABC's "Brothers & Sisters" as a Republican senator, Robert McCallister; left series after the fourth season
Hosted "Saturday Night Live" (NBC), beginning his association with then-cast member Mike Myers
Made stage debut at the Williamstown Theatre Festival in "Three Sisters"
Landed breakthrough role as Sodapop in Francis Ford Coppola's "The Outsiders"
Re-teamed with Aaron Sorkin to star in the London revival of "A Few Good Men"
Returned to series television for the first time since 1979, playing the President's deputy communications director on the NBC political drama, "The West Wing"; left the series due to monetary disputes; earned Golden Globe (1999, 2000) and Emmy (2001) nominations for Best Actor
Made TV series debut on the short-lived ABC sitcom "A New Kind of Family"
Produced the HBO-aired film "Frank and Jesse"; also co-starred as Jesse James
Made Broadway debut in "A Little Hotel on the Side"
Portrayed a conservative Christian leader in "Contact"
Played a recurring character on Showtime's "Californication"
Voiced the role of Simba on the animated series "The Lion Guard"