Mike Horner, Actor: Nothing to Hide II: Justine. Mike Horner was born on February 3, in Portland, Oregon, USA as Michael George Coe. He is an actor and. Mike Horner, Music Department: Brideshead Revisited. Mike Horner is an American pornographic film actor. He is sometimes credited as Don Hart Don Horner, "Dan Sir" or Johnny Wilson. Horner began acting in.