Comedy Fantasy Romance
A young married physician discovers a mermaid, and gives into her request to be taken to see London. Comedy and romantic entanglements ensue.
Directed by
Ken Annakin
Written by
Denis Waldock
Glynis Johns
Miranda Trewella
Margaret Rutherford
Nurse Carey
Zena Marshall
Secretary
Googie Withers
Clare Martin
John McCallum
Nigel
Sonia Holm
Isobel
Gerald Campion
Lift Boy (uncredited)
Philip Ray
Fisherman (uncredited)
Joan Ingram
Primadonna (uncredited)
David Tomlinson
Charles
Maurice Denham
Cockle Vendor
Yvonne Owen
Betty
Griffith Jones
Dr. Paul Martin
Brian Oulton
Manell
Howard Douglas
Fisherman (uncredited)
Charles Paton
On the Kiosk (uncredited)
Hal Osmond
Railway Carman
Stringer Davis
Museum Attendant
Lyn Evans
Inn Landlord
Tonie MacMillan
Nigel's Landlady (uncredited)
Charles Rolfe
On the Kiosk (uncredited)
Frank Webster
Service Man (uncredited)

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