Elisha Vanslyck Cook Jr. was an American character actor famed for his work in film noir. According to Bill Georgaris of They Shoot Pictures, Don't They, Cook appeared in a total of 21 film noirs, more than any other actor or actress. He played cheerful, brainy collegiates until he was cast against type as the bug-eyed baby-faced psychopathic killer Wilmer Cook in the 1941 version of The Maltese Falcon. He went on to play deceptively mild-mannered villains. Cook's acting career spanned more than 60 years, with roles in productions including The Big Sleep, Shane, The Killing, House on Haunted Hill, and Rosemary's Baby.

House on Haunted Hill is a 1959 American horror film produced and directed by William Castle, written by Robb White and starring Vincent Price, Carol Ohmart, Richard Long, Alan Marshal, Carolyn Craig and Elisha Cook Jr. Price plays an eccentric millionaire, Frederick Loren, who, along with his wife Annabelle, has invited five people to the house for a "haunted house" party. Whoever stays in the house for one night will earn $10,000. As the night progresses, the guests are trapped within the house with an assortment of terrors. This film is perhaps best known for its promotional gimmick Emergo.