Cary Grant as Jim Blandings

Myrna Loy as Muriel Blandings

Melvyn Douglas as Bill Cole

Reginald Denny as Henry L. Simms

Sharyn Moffett as Joan Blandings

Connie Marshall as Betsy Blandings

Louise Beavers as Gussie

Ian Wolfe as Smith

Harry Shannon as Tesander

Tito Vuolo as Mr. Zucca

Nestor Paiva as Joe Appollonio

Jason Robards Sr. as John Retch

Lurene Tuttle as Mary

Lex Barker as Carpenter Foreman

Emory Parnell as Mr. PeDelford

Stanley Andrews as Mr. Murphy (uncredited)

Robert Bray as Workman (uncredited)

Don Brodie as Charlie - Painter (uncredited)

Cliff Clark as Jones (uncredited)

Kernan Cripps as Policeman (uncredited)

Frank Darien as Judge Quarles (uncredited)

Hal K. Dawson as Harry Selby (uncredited)

Mike Lally as Hurried Diner (uncredited)

Gene Leslie as Taxi Driver (uncredited)

Charles Middleton as Wrecker (uncredited)

Franklin Parker as Simpson (uncredited)

Ralph Stein as Proprietor (uncredited)

Dan Tobin as Bunny Funkhauser (uncredited)

Friedrich von Ledebur as Workman (uncredited)

Bud Wiser as Customer (uncredited)

Will Wright as Eph Hackett (uncredited)