Diana Weston (born 13 November 1953) is a Canadian-British actress who has been on British television since 1975. She is a grandchild of Charles Basil Price. Weston's first role was in a 1975 episode of Thriller, and parts in Raffles, The Sweeney, The Professionals, Agony, Shoestring and Bless Me, Father soon followed. She also appeared in the video for the 1984 Ultravox single Dancing with Tears in My Eyes. Since the late 1980s, she has appeared in The New Statesman, Boon, A Bit of a Do, About Face, Nightingales, Jonathan Creek, Casualty, Emmerdale, My Family, New Tricks and a main role in the 2000 sitcom Pay and Display.
However, it is for the role of Caroline in the sitcom The Upper Hand that she is best known, starring alongside Joe McGann and Honor Blackman, with the show being produced for ITV from 1990 to 1996.

Valentino
1977 · as 2nd Whore (uncredited)

Sweeney 2
1978 · as Air Hostess

Old Bag
2025 · as Mary

The Kitchen
1977 · as Cynthia

Riding High
1981 · as Receptionist

Bert Rigby, You're a Fool
1989 · as Young Mrs. Rigby

Crocodile Tears
2002 · as Self - Narrator (voice)

Resting
as Sylvia

Lucky Break
2020 · as Lady

The All New Adventures of Mr Blobby
1996

Death in Deep Water
1975 · as Helen Wiles