Wyatt Hawn Russell (born July 10, 1986) is an American actor and former professional ice hockey goaltender. Since 2021, he has played John Walker / U.S. Agent in the Marvel Cinematic Universe media franchise, beginning with the Disney+ series The Falcon and the Winter Soldier (2021) and the films Thunderbolts* (2025), Avengers: Doomsday (2026) and Avengers: Secret Wars (2027).

Russell has starred in various films, including Everybody Wants Some!! (2016), Goon: Last of the Enforcers (2017), Overlord (2018) and Night Swim (2024), and also starred in roles in television shows including Black Mirror (2016), Lodge 49 (2018–2019), and Monarch: Legacy of Monsters (2023–present).