He is best known for his role of Connor MacLeod in the adventure-fantasy film Highlander (1986) and the subsequent franchise of the same name, Raiden in Mortal Kombat (1995), Methodius in Ghost Rider: Spirit of Vengeance (2011), and Arne Seslum in Hail, Caesar!

[3] Director Hugh Hudson and Warner Brothers sought out Lambert, wanting an unknown actor to play Tarzan, a human raised by apes in the jungle.

[10] Lambert got the role beating out Viggo Mortensen and Stellan Skarsgard partly due to his myopia, because when he took off his glasses it seemed he was always looking into the distance.

In 1988, he starred in Agnieszka Holland's To Kill a Priest, in which he played a character based on Jerzy Popiełuszko and his murder under the Polish communist regime.

In 1991, Highlander II: The Quickening premiered, reuniting Lambert with director Russell Mulcahy and fellow actor Sean Connery.

He appeared in the first episode of the television show Highlander: The Series, passing on the lead role to actor Adrian Paul.

[21] The story takes place in a dystopian future where a man and his wife are sent to a maximum-security prison because they are expecting a second child, which is against the strict one-child policy.

[18] In this third installment of the franchise, Connor MacLeod is forced to face a new, dangerous enemy, a powerful sorcerer known as Kane who wants to gain world domination.

[22] In 1995, he played the role of the thunder god Raiden in the Paul W. S. Anderson's movie adaptation of the popular video game series Mortal Kombat.

[23] The plot of the film follows the warrior monk Liu Kang, the actor Johnny Cage, and the soldier Sonya Blade, all three guided by the god Raiden,[23] on their journey to combat the evil sorcerer Shang Tsung and his forces in a tournament to save Earth.

[15] In 1996, Lambert was an executive producer and the lead in Nils Gaup's western film North Star, co-starring James Caan.

[19] In 1999, he produced and starred in Russell Mulcahy's Resurrection,[15] where he plays a detective who is assigned to investigate the savage murder of a man who has bled to death from a severed arm.

[19] He also starred in John Glen's The Point Men, about a team of Israeli agents being killed off one-by-one after a botched anti-terrorist operation.

[15] He was an executive producer on the film The Confessor (also known as The Good Shepherd) starring Christian Slater, Molly Parker, and Stephen Rea.

[33] Shortly afterwards, he got the role of Marcel Janvier (alias "The Chameleon"), a recurring villain in award-winning hit police crime TV drama NCIS: Los Angeles.

[34] In 2014, he played in the biographical crime drama film Electric Slide, about the Los Angeles-based bank robber Eddie Dodson.

Lambert plays the role of SS officer Karl Frenzel in the Russian film Sobibor by director Konstantin Khabensky, which was released in 2018.

[36] Lambert received high praise for "an outstanding and nuanced performance; he is unrecognisable as Frenzel, a demonic, fractured character".

[37] Lambert was part of the ensemble cast of Bel Canto from director Paul Weitz, an adaptation of the 2002 novel of the same name, by Ann Patchett.

Beaumard has primary creative control of the winery, but Lambert conducts barrel tests and monitors the various stages of the wine's evolution.