Boris Karloff and Richard O'Sullivan in The DuPont Show of the Month (1957)

Hugh Griffith and Richard O'Sullivan in The DuPont Show of the Month (1957)

Susan Hampshire, Melvyn Hayes, Richard O'Sullivan, and Cliff Richard in Swingers' Paradise (1964)

Patrick McGoohan, Paul Curran, and Richard O'Sullivan in Secret Agent (1964)

Frankie Avalon, Julian Barnes, Carol Dilworth, Veronica Doran, Jill Haworth, Richard O'Sullivan, and Robin Stewart in Horror House (1969)

John Gregson, Richard O'Sullivan, and Kathleen Ryan in Jacqueline (1956)

Frankie Avalon, Julian Barnes, Carol Dilworth, Veronica Doran, Jill Haworth, Richard O'Sullivan, Dennis Price, Gina Warwick, and Mark Wynter in Horror House (1969)

Richard O'Sullivan in The DuPont Show of the Month (1957)

Tony Britton, Richard O'Sullivan, and Tessa Wyatt in Robin's Nest (1977)

Richard O'Sullivan and Tessa Wyatt in Robin's Nest (1977)

Tony Britton, David Kelly, and Richard O'Sullivan in Robin's Nest (1977)

Christopher Benjamin, David Daker, Michael Deeks, and Richard O'Sullivan in Dick Turpin (1979)

Yootha Joyce, Brian Murphy, Richard O'Sullivan, Sally Thomsett, and Paula Wilcox in Man About the House (1973)

Richard O'Sullivan, Sally Thomsett, and Paula Wilcox in Man About the House (1973)