Yondu Udonta is a major character in the Guardians of the Galaxy film trilogy set in the Marvel Cinematic Universe.
He is the adopted father of Peter Quill/Star-Lord, an exiled member of the Ravagers and was the leader of his own Ravager Clan before losing his position in a mutiny. He was originally hired by Ego, Peter's biological father, to retrieve him from Earth, but Yondu didn't deliver Peter upon learning of Ego's plans.
He was portrayed by Michael Rooker, who also played Henry in Henry: Portrait of a Serial Killer, The Bone Collector in the film of the same name, Grant Grantin Slither, Merle Dixon in The Walking Dead, Terry Cruger in Sea of Love, Vikkein Lollipop Chainsaw, Lutador in Vivo and Savant in The Suicide Squad.