Audrey Hepburn as Jo Stockton

Fred Astaire as Dick Avery

Kay Thompson as Maggie Prescott

Michel Auclair as Prof. Emile Flostre

Robert Flemyng as Paul Duval

Dovima as Marion

Suzy Parker as Specialty Dancer (Think Pink Number)

Sunny Hartnett as Specialty Dancer (Think Pink Number)

Jean Del Val as Hairdresser

Virginia Gibson as Babs

Sue England as Laura

Ruta Lee as Lettie

Alex Gerry as Dovitch

Bess Flowers as Fashion Show Spectator

Iphigenie Castiglioni as Armande

Bert Stevens as Guest at Aborted Fashion Show

Harold Miller as Guest at Aborted Fashion Show (uncredited)

Franklyn Farnum as Guest at Duval's Fashion Show (uncredited)

Brandon Beach as Guest at Aborted Fashion Show

Carole Eastman as Specialty Dancer (uncredited)

Leoda Richards as Fashion Show Spectator

Marion Gray as

Marilyn White as Receptionist (uncredited)

Oliver Cross as Fashion Show Guest (uncredited)

Charles Fogel as Fashion Show Guest (uncredited)

Sam Harris as Fashion Show Guest (uncredited)

Marcel De La Brosse as Seedy Man (uncredited)

Louise Glenn as Junior Editor (uncredited)

Caryl Lincoln as Fashion Show Guest (uncredited)

Forbes Murray as Fashion Show Guest (uncredited)

Paul Smith as Steve (uncredited)