Alcock and Gander is a British sitcom that aired on ITV in 1972.
 Starring Beryl Reid and Richard O'Sullivan, it lasted for one series.
 It was written by Johnnie Mortimer and Brian Cooke, who later
Rosie Dixon – Night Nurse is a 1978 British comedy film directed by Justin Cartwright and starring Debbie Ash, Carolyne Argyle, Beryl Reid and John Le Mesurier.
 It was based on a novel by Christopher Wood.
Carry On Emmannuelle is the 30th in the series of "Carry On" films to be made, and was released in 1978.
 This was the last "Carry On" film to be made until "Carry On Columbus" in 1992.
 The film was to be the final "Carry On" for many regulars, including Kenneth Williams (in his 26th "Carry On"), Kenneth Connor (in his 17th), Joan Sims (in her 24th) and Peter Butterworth (in his 16th).
 Jack Douglas and Jim Dale are the only regulars from the original run of Carry On films to bridge the gap to "Carry On Columbus".
 Beryl Reid and Suzanne Danielle make their only appearances in the series here.
 The film featured a change in style, becoming more openly sexual.
 This was highlighted by the implied behaviour of Danielle's character, though she does not bare any more flesh than any other "Carry On" female lead.
 These changes brought the film closer to the then popular series of X-rated "Confessions..." comedies, or indeed the official "Emmanuelle" films it parodies.
 This, and "Carry On England", were the only films in the series to be certified AA by the then British Board of Film Censors, which restricted audiences to those aged 14 and over.
The Killing of Sister George is a 1968 film directed by Robert Aldrich based on the 1964 play by Frank Marcus.
 In the film, an aging lesbian television actress, June "George" Buckridge (Beryl Reid, reprising her role from the stage play), simultaneously faces the loss of her popular television role and the breakdown of her longterm relationship with a younger woman (Susannah York).
 Although Marcus' play was a black comedy, the film version was marketed as a "shocking drama"; it added explicit lesbian content that was not in the original play, and was presented as a serious treatment of lesbianism.
The George Sanders Mystery Theater is the title of a 30-minute American television mystery drama series hosted by character actor George Sanders which aired Sundays on NBC in the summer of 1957.
Robert Charles William Luff, CBE (7 July 1914 – 18 February 2009) was a British theatrical agent and producer.
 He was most notable for producing the stage version of "The Black and White Minstrel Show" and being the former agent of Lenny Henry, the Tiller Girls and Beryl Reid.
 He successfully owned theatres and hotels in Scarborough, Bournemouth, Morecambe and Eastbourne.
Psychomania (a.k.a.
 The Death Wheelers) is a 1973 British horror-cult film starring Nicky Henson, Beryl Reid, George Sanders (in his final film) and Robert Hardy.
Timothy Sydney Robert Hardy, CBE, FSA (29 October 1925 – 3 August 2017) was an English actor who enjoyed a long career in the theatre, film and television.
Death of a Scoundrel is a 1956 film written, directed and produced by Charles Martin and starring George Sanders, Yvonne De Carlo, Zsa Zsa Gabor, Victor Jory and Coleen Gray.
 This film and "The Falcon's Brother" are the only two to feature real-life lookalike brothers George Sanders and Tom Conway, who portray brothers in both pictures.
 The movie's music is by Max Steiner and the cinematographer is James Wong Howe.
Blue Heaven is a British television sitcom that starred Frank Skinner, Conleth Hill, John Forgeham, Nadim Sawalha and Paula Wilcox.
 It featured guest stars such as Bill Bailey, Bob Goody, Tamsin Greig, Lucy Davis, Beryl Reid, Philip Glenister and John Thomson.

Question: What is the nationality of the actor who co-starred in Psychomania along with Nicky Henson, Beryl Reid, and George Sanders?
Answer: English