
A 29‑year‑old aspiring composer, still single and lacking romantic prospects, swears to marry and pen a hit musical before his 30th birthday. Set in Britain, the 1968 comedy directed by Joseph McGrath follows his frantic quest, featuring Dudley Moore, Suzy Kendall, Eddie Foy Jr., and Patricia Routledge.
Does 30 Is a Dangerous Age, Cynthia! have end credit scenes?
No!
30 Is a Dangerous Age, Cynthia! does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of 30 Is a Dangerous Age, Cynthia!, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Dudley Moore
Rupert Street

Patricia Routledge
Mrs. Woolley

Suzy Kendall
Louise Hammond

Eddie Foy Jr.
Oscar

Nicky Henson
Paul

Frank Thornton
Registrar

Peter Bayliss
Victor

Harry Towb
Mr. Woolley

John Bird
Herbert Greenslade

Derek Farr
TV Announcer

Clive Dunn
Doctor

Micheál Mac Liammóir
Irish Storyteller

Duncan Macrae
Jock McCue

Jonathan Routh
Captain Gore-Taylor

Ted Dicks Jr.
Horst Cohen
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