The Caretaker was adapted as a film in 1964. This British production stars Alan Bates as Mick, Donald Pleasance as Davies, and Robert Shaw as Aston. The producer was Michael Birkett. The film also appeared under the title The Guest.

A made-for-television version was filmed and shown on the BBC in 1966. This version was directed by Clive Donner and starred Ian MacShane as Mick, John Rees as Aston, and Roy Dotrice as Davies.