King provided voice work for the television series Children’s Ward in 1989. He has starred in the movies Do It for Uncle Manny, Half Past Dead, Cruel Game, The Day After Tomorrow, Trust Me, and Who’s Your Caddy?. He is the voice of American Express in the United Kingdom. King has also starred in stage productions of The Rocky Horror Show, Joseph and the Amazing Technicolor Dreamcoat, and Guys and Dolls.