What movie and television projects has Helen Mayon been in?

Helen Mayon was a British actress with a prolific career spanning several decades. She appeared in numerous films and television programs. However, she was known for keeping her personal life private and her filmography is not as extensively documented as many other actors.

Here are some of her notable projects:

Films:

* The Importance of Being Earnest (1952): This adaptation of Oscar Wilde's play is one of her most well-known roles, where she played Miss Prism.

* The Man Who Knew Too Much (1956): This Hitchcock classic features her as the headmistress.

* The Horse's Mouth (1958): Mayon plays a supporting role in this comedy-drama.

Television:

* ITV Playhouse (1958-1974): This long-running British anthology series featured Mayon in several episodes.

* Armchair Theatre (1956-1974): Another British anthology series where Mayon appeared in various roles.

* The Avengers (1961-1969): She played the role of Mrs. Peabody in the episode "The Bird Who Knew Too Much" in this popular spy series.

* The Duchess of Duke Street (1976-1979): Mayon appeared in several episodes of this period drama series.

These are just a few examples of the many projects Helen Mayon was involved in. She was known for her versatility and ability to portray a wide range of characters, making her a respected and well-loved actress in Britain.

For a more complete list of her film and television work, you can consult online film databases such as IMDb or BFI (British Film Institute).