William Mark "Bill" Fagerbakke (born October 4, 1957) is an American actor, voice actor, producer, director and writer. He is best known for his long-running roles as Patrick Star in the animated series SpongeBob SquarePants and Michael "Dauber" Dybinski on the sitcom Coach. He also appeared in 11 episodes of the sitcom How I Met Your Mother as Marshall Eriksen's father Marvin.