A musical arranger active from the 1960s on, Whitaker also scored several films. These include Scream and Scream Again (1970), Dr Jekyll and Sister Hyde (1971), Vampire Circus (1972), That’s Your Funeral (1972), Psychomania (1973), The Sword & The Sorcerer (1982) Harry, He’s Here To Help (2000) and Lemming (2005).