In Victorian England, a fortune now depends on which of two brothers outlives the other—or can be made to have seemed to do so.
John Mills
as Masterman Finsbury
Ralph Richardson
as Joseph Finsbury
Michael Caine
as Michael Hubert Gregory Finsbury
Peter Cook
as Morris Finsbury
Dudley Moore
as John Finsbury
Nanette Newman
as Julia Finsbury
Tony Hancock
as Detective
Peter Sellers
as Doctor Pratt
Cicely Courtneidge
as Major Martha
Wilfrid Lawson
as Peacock
Thorley Walters
as Patience
Gerald Sim
as 1st Undertaker