Began acting career in radio with Canadian Broadcasting Company (CBC)
Performed at Shakespearean Stratford Festival of Canada in Stratford, Ontario
Made movie debut in Canadian film "The Butler's Night Off"
Made Broadway debut in Sir Tyrone Guthrie's production of "Tamburlaine the Great"
Appeared with Ralph Bellamy as a father and son legal team on "The Defender" episode of "Studio One" (CBS)
Made Hollywood feature debut in "The Brothers Karamazov," starring Yul Brynner
First leading role in a feature, "The Explosive Generation"
Made TV series debut on critically acclaimed CBS drama "For the People"; show lasted only 13 episodes
First cast as Captain James T. Kirk in Gene Roddenberry's popular sci-fi series "Star Trek" (NBC)
Cast an undercover agent in Western-themed secret agent series "Barbary Coast" (ABC)
Portrayed American revolutionary Paul Revere in syndicated miniseries "The Bastard"
Reprised role of Captain Kirk for first franchise feature "Star Trek: The Motion Picture"
Narrated syndicated series "This Was America"
Directed Los Angeles production of "Cat on a Hot Tin Roof"; starred his then wife Marcy Lafferty
Returned to series TV, starring as a police officer on "T.J. Hooker" (ABC); aired on CBS for its final season; also directed episodes
Made feature directorial debut with "Star Trek V: The Final Frontier"
Hosted dramatic reenactment series "Rescue 911" (CBS)
Published first novel <i>TekWar</i>
Co-hosted (with Leonard Nimoy) "The Star Trek 25th Anniversary Special" for syndication
Co-wrote memoir <i>Star Trek Memories</i>
Hosted First Annual TekWar Symposium
TV series producing debut, "TekWar" and "TekLords" (USA Network); also played recurring role and occasionally directed
Spoofed his image, playing himself in feature comedy "Free Enterprise"
Garnered Emmy nomination for playing the Big Giant Head on an episode of NBC sitcom "3rd Rock From the Sun"
Played beauty pageant host Stan Fields in Sandra Bullock vehicle "Miss Congeniality"
Voiced animated character Mayor Phlegmming in "Osmosis Jones"
Appeared as himself in comedy "Showtime," starring Robert De Niro and Eddie Murphy
Joined final season of ABC's legal drama "The Practice" as Denny Crane, an eccentric senior law partner
Played minor role of the Dodgeball Chancellor in Ben Stiller comedy "Dodgeball: A True Underdog Story"
Reprised role of attorney Denny Crane on "The Practice" spin-off "Boston Legal" (ABC); earned SAG (2006, 2009) and Emmy (2006, 2007, 2008) nominations for Best Actor in a Comedy Series; also earned Golden Globe (2008) and Emmy (2009) nominations for Best Supporting Actor
Reprised role of Stan Fields in "Miss Congeniality 2: Armed and Fabulous"
Voiced Ozzie, a dramatic possum in animated comedy "Over the Hedge"
Published autobiography <i>Up Till Now</i>
First starring role in a sitcom "$#*! My Dad Says" (CBS)
Wrote, directed, executive produced, and starred in documentary "The Captains"
Voiced character of villain General Shanker in computer animated feature "Escape from Planet Earth"