Sean Gunn (born May 22, 1974) is an American actor. He is known for his roles as Kirk Gleason on The WB series Gilmore Girls (2000–2007), and Kraglin Obfonteri in the Marvel Cinematic Universe. In this role, he has been in the films Guardians of the Galaxy (2014), Guardians of the Galaxy Vol. 2 (2017), Avengers: Endgame (2019), Thor: Love and Thunder (2022), Guardians of the Galaxy Vol. 3 (2023), as well as the animated series What If...? (2021–2024), and television special The Guardians of the Galaxy Holiday Special (2022). He also played Weasel and Calendar Man in the Warner Bros./DCEU film The Suicide Squad (2021). He reprised the role of Weasel in the DCU HBO Max series Creature Commandos (2024), where he also plays G.I. Robot. He is the younger brother of director James Gunn and often appears in his productions.