Name	Known for
Jane Baxter Diana Diana See fewer	Drake the Pirate (1935)
Stella Bonheur Margery Margery See fewer	ITV Play of the Week (1955)
Debbie Bowen Susan Susan See fewer	Affairs of the Heart (1974)
Bridget Brice Carole Carole See fewer	The Twelve Chairs (1970)
Jan Holden Betty Betty See fewer	Agony (1979)
David Langton Roger Roger See fewer	The Avengers (1961)
Philip Lennard Bullivant Bullivant See fewer	The Six Proud Walkers (1954)
Julie Martin Pauline Pauline See fewer	Softly Softly (1966)
Daphne Odin-Pearse Hazel Hazel See fewer	The Men from Room 13 (1959)
Michael Slater Johnson Johnson See fewer	The Gnomes of Dulwich (1969)
Patrick Waddington Harry Harry See fewer	A Night to Remember (1958)
John Wentworth Dennis Dennis See fewer	The Main Chance (1969)
Raymond Young Collins Collins See fewer	Department S (1969)