David Arnott is an American actor, screenwriter, and musical composer. He is best known for The Last Man, The Adventures of Ford Fairlane, and Three Fugitives. Other film credits include The Lego Movie, The Great Gatsby, Pacific Rim, We Bought a Zoo, and Rendition.

Theatre credits include Charlie Aiken in August: Osage County (Darkhorse Theatre); Father in Ragtime, Thomas Andrews in Titanic, Mr. Bucket in Willie Wonka, Joe Vegas in Fame Forever, and Mr. Myers in Fame (Circle Players); Orin Scrivello in Little Shop of Horrors and Sir Joseph Porter in H.M.S. Pinafore (Pull-Tight Theatre); Pharaoh in Joseph and the Amazing Technicolor Dreamcoat, Miles Gloriosus in A Funny Thing Happened on the Way to the Forum, and Fred Graham/Petruchio in Kiss Me, Kate (Larry Keeton Theatre); Buffalo Bill in Annie Get Your Gun and J.D. Sheldrake in Promise, Promises (Boiler Room Theatre); and Old Deuteronomy in Cats (Renaissance Players).