Fred Astaire as Finian McLonergan

Petula Clark as Sharon McLonergan

Tommy Steele as 'Og' the Leprechaun

Don Francks as Woody Mahoney

Keenan Wynn as Senator Billboard Rawkins

Barbara Hancock as Susan the Silent

Al Freeman Jr. as Howard

Ronald Colby as Buzz Collins

Dolph Sweet as Sheriff

Wright King as District Attorney

Louil Silas as Henry

Brenda Arnau as Sharecropper 'Necessity' (uncredited)

Avon Long as Passion Pilgrim Gospeller (uncredited)

Roy Glenn as Passion Pilgrim Gospeller (uncredited)

Jester Hairston as Passion Pilgrim Gospeller (uncredited)

Charles Carter as Sharecropper (uncredited)

Sterling Clark as Sharecropper (uncredited)

Robert Cleaves as Geologist (uncredited)

Robert Cole as Sharecropper (uncredited)

Willie Covan as Sharecropper (uncredited)

Evelyn Dutton as Sharecropper (uncredited)

Martin Eric as Deputy (uncredited)

Joe Evans as Sharecropper (uncredited)

Talya Ferro as Sharecropper (uncredited)

Jimmy Fields as Sharecropper (uncredited)

Carey Foster as Sharecropper (uncredited)

Lili Francks as Sharecropper (uncredited)

Nicci-Ann Frank as Sharecropper Child (uncredited)

Louis Hart as Man in White Suit (uncredited)

Marya Henriques as Sharecropper (uncredited)

Robert S. Holman as Lucas (uncredited)

Joyce Horne as Sharecropper (uncredited)

Vince Howard as Geologist #1 (uncredited)

Bruce Hoy as Sharecropper (uncredited)

Bobby Johnson as Sharecropper (uncredited)

Carlton Johnson as Sharecropper (uncredited)

Phyllis Kennedy as Sharecropper (uncredited)

Maurishka as Sharecropper (uncredited)

Bert May as Sharecropper (uncredited)

Gary Menteer as Sharecropper (uncredited)

Frances E. Nealy as Sharecropper (uncredited)

Roy Palmer as Sharecropper (uncredited)

Frank Radcliffe as Sharecropper (uncredited)

Leonard Rogel as Man in White Suit (uncredited)

Robert Strong as Deputy (uncredited)

Roberta Tennes as Sharecropper (uncredited)

Claude Thompson as Sharecropper (uncredited)

Peter Virgo as Deputy (uncredited)

Rebecca Vorno as Sharecropper (uncredited)

Clessia Wade as Sharecropper (uncredited)

Jonathan Wynne as Sharecropper (uncredited)