Writing

—		The Exorcist: Redeemer … Characters
—		The Exorcist: Deceiver … Characters

2023

… Characters

2016

(20 episodes) … Novel

2005

… Characters

2004

… Characters

1990

… Screenplay

1980

… Novel … Screenplay

1977

… Characters

1973

… Screenplay … Novel

1970

… Writer

1969		The Great Bank Robbery … Screenplay
1969		Mastermind … Story … Screenplay

1967

… Screenplay

1966		What Did You Do in the War, Daddy? … Screenplay
1966		Promise Her Anything … Screenplay

1965

… Writer

1964

… Screenplay

1963

… Story … Screenplay