[2] He grew up in Iceland, and studied theater at the Cours Florent in Paris, where he was a classmate of actress Audrey Tautou.

[2] Lemarquis is possibly best known for his starring role in the 2003 Icelandic film Noi the Albino.

Lemarquis' played a lead role in the 2018 Berlinale Film Festival winner, Touch Me Not.

He has also appeared in films such as Snowpiercer, X-Men: Apocalypse and Blade Runner 2049.

Lemarquis is fluent in Icelandic, French, Danish, German and English.