Fred Astaire

Finian McLonergan

Petula Clark

Sharon McLonergan

Tommy Steele

'Og' the Leprechaun

Don Francks

Woody Mahoney

Keenan Wynn

Senator Billboard Rawkins

Barbara Hancock

Susan the Silent

Al Freeman Jr.

Howard

Dolph Sweet

Sheriff

Wright King

District Attorney

Brenda Arnau

Sharecropper 'Necessity' (uncredited)

Roy Glenn

Passion Pilgrim Gospeller (uncredited)

Robert Cleaves

Geologist (uncredited)

Vince Howard

Geologist #1 (uncredited)

Phyllis Kennedy

Sharecropper (uncredited)

Frances E. Nealy

Sharecropper (uncredited)

Peter Virgo

Deputy (uncredited)