Name	Known for
Kathleen Beller Maureen O'Brian Maureen O'Brian See fewer	The Godfather Part II (1974)
Pierce Brosnan Rory O'Manion Rory O'Manion See fewer	Mamma Mia! (2008)
Steve Forrest James Kent James Kent See fewer	Mommie Dearest (1981)
Peter Gilmore Jim O'Brien Jim O'Brien See fewer	Carry on Up the Khyber (1968)
Nicholas Hammond Padric O'Manion (credit only) Padric O'Manion (credit only) See fewer	The Sound of Music (1965)
Simon MacCorkindale David Clement David Clement See fewer	Jaws 3-D (1983)
Kate Mulgrew Rachel Clement Rachel Clement See fewer	Star Trek: Voyager (1995)
Barbara Parkins Charlotte Kent Charlotte Kent See fewer	Valley of the Dolls (1967)
Linda Purl Deirdre O'Manion Deirdre O'Manion See fewer	Mighty Joe Young (1998)
Anthony Quayle Lord Montgomery (credit only) Lord Montgomery (credit only) See fewer	Lawrence of Arabia (1962)
Simon Rouse Eamon Flemming Eamon Flemming See fewer	The Bill (1984)
David Soul Caleb Staunton Caleb Staunton See fewer	Starsky & Hutch (2004)
Christopher Casson Minister Minister See fewer	Zardoz (1974)
Brendan Cauldwell Editor Editor See fewer	Far and Away (1992)
Pat Layde O'Casey O'Casey See fewer	Home Is the Hero (1959)
Peter Marinker Policeman Policeman See fewer	Labyrinth (1986)
Pat Power Patrick Delaney Patrick Delaney See fewer	George Clooney's Irish Roots (2012)
O.Z. Whitehead Storekeeper Storekeeper See fewer	The Grapes of Wrath (1940)