Marcel Jeannin (born December 1968, Canada) is a Canadian actor and voice actor living in Montreal, Quebec, fluent in French. He began his career at the Stratford Festival in 1991. In film, he appeared in "Affliction" (1997), "Wicker Park" (2004), "300" (2006), "The Long Shot" (2019), and "Charlie Tango" (2024). On television, he played the lead role in the series "Snakes and Ladders" (2004) and appeared in the series "Three Pines" (2022) and "The Queen's Gambit" (2022).

In voice acting, he is known as Douglas Shetland in the Splinter Cell series, Mark Thruss in Watch Dogs 2 (2016), and voiced characters in the Assassin's Creed series. He also did motion capture in Watch Dogs (2014) and "The Adventures of Tintin: The Secret of the Unicorn" (2011).