Alaimo is a classically trained theatre actor, and performed as part of the Marquette University Players and the Milwaukee Repertory Theater in the 1960s in everything from Shakespeare and the classics to world premiere productions. He was also a member of various theatre companies in New York and touring companies across the country before making the move to Los Angeles in 1973. Some of his theatrical roles include
Iago in
Othello, Rodolpho in
Arthur Miller's
A View From the Bridge and Lucky in
Samuel Beckett's
Waiting for Godot. Alaimo has been playing characters in television shows since 1971. He has appeared, mostly as villains, in shows such as
The Doctors,
Kojak,
Gunsmoke,
Baretta,
The Six Million Dollar Man,
The Bionic Woman,
Starsky & Hutch,
Knight Rider,
Quincy,
The Greatest American Hero,
The Incredible Hulk,
Quantum Leap,
Family Guy,
Walker, Texas Ranger,
Wonder Woman,
The Rockford Files,
Hill Street Blues,
Barnaby Jones, and
The A-Team. Alaimo has appeared in some feature films including the 1984 science fiction movie
The Last Starfighter (portraying the human guise of an alien assassin),
Naked Gun : The Final Insult,
Tango & Cash, and the 1988 film
The Dead Pool. He also appeared as Curtis Block in the television movie
Case Closed and as a security officer on Mars in the
Arnold Schwarzenegger movie
Total Recall. He played several characters in
Star Trek: The Next Generation (
Star Trek: TNG), starting in the first season. He has the distinction of two firsts on
Star Trek: TNG, playing the first
Romulan, Commander Tebok, in the 1988 episode "
The Neutral Zone", and the first
Cardassian (in any
Star Trek series), Gul Macet, in the 1991 episode, "
The Wounded". He also played a poker player who speaks French to
Data in the episode "
Time's Arrow". In 1993, Alaimo began playing Cardassian character
Gul Dukat in
Star Trek: Deep Space Nine. Gul Dukat was a recurring character that appeared in 35 episodes of the series. Alaimo also appeared in a season two episode of
21 Jump Street. He was also featured in the 2006 video game
Call of Juarez, and its 2009 prequel
Call of Juarez: Bound in Blood, both times as the voice of the gunslinging Ray McCall. In 2010 he voiced The Dean in the
Family Guy episode "
The Splendid Source". During a Q&A panel at the Star Trek Las Vegas Convention in 2015, Alaimo revealed he was still willing to work as an actor but was out of touch with the industry and had no agency representing him at that time.{{cite AV media |title=Andrew Robinson Alexander Siddig and Marc Alaimo Las Vegas 2015 |publisher=Knasinski, Mary|url=https://www.youtube.com/watch?v=cQz0ObRH-NQ ==Filmography==