Red Skelton as Louis Blore / King Louis XV

Lucille Ball as May Daly / Madame Du Barry

Gene Kelly as Alec Howe / Black Arrow

Virginia O'Brien as Ginny

Rags Ragland as Charlie / Dauphin

Zero Mostel as Rami, the Swami / Taliostra

Tommy Dorsey as Tommy Dorsey

Donald Meek as Mr. Jones / Duc de Choiseul

Douglass Dumbrille as Willie / Duc de Rigor

George Givot as Cheezy / Count de Roquefort

Louise Beavers as Niagara

Richard Ainley as Marching Rebel Behind King Louis (uncredited)

Grace Albertson as Perfume Girl (uncredited)

Kay Aldridge as Mrs. McGowan (uncredited)

Ernie Alexander as Delivery Man with Flowers (uncredited)

Richard Alexander as Marching Rebel Behind King Louis (uncredited)

Sig Arno as Nick (uncredited)

Eleanor Bayley as Eleanor Bayley (uncredited)

Hugh Beaumont as Footman (uncredited)

Barbara Bedford as Ambrose's Wife (uncredited)

Brooks Benedict as Club Patron (uncredited)

Clara Blandick as Old Lady on Subway (uncredited)

Hazel Brooks as Miss June (uncredited)

Pauline Byrne as Member of Six Hits and a Miss (uncredited)

Jack Byron as minor role (uncredited)

James Carlisle as Club Patron (uncredited)

Jack Carrington as Waiter (uncredited)

Georgia Carroll as Miss January (uncredited)

Emmett Casey as Flunky (uncredited)

Willy Castello as Flunky (uncredited)

Thomas Clarke as Flunky (uncredited)

Chester Clute as Dr. Pullit (uncredited)

Theo Coffman as Miss October (uncredited)

Charles Coleman as Charlie (uncredited)

Edward Cooper as Flunky (uncredited)

Inez Cooper as Miss December (uncredited)

Maurice Costello as Passerby (uncredited)

Earl Covert as Singer (uncredited)

Cecil Cunningham as Wife Checking Her Coat (uncredited)

Natalie Draper as Miss March (uncredited)

Ziggy Elman as Trumpet Player (uncredited)

William Forrest as Guard Captain (uncredited)

Christian J. Frank as Lackey (uncredited)

Mary Jane French as Miss November (uncredited)

Ava Gardner as Perfume Girl (uncredited)

John George as Villager (uncredited)

June Glory as Audience Member (uncredited)

Jack Gordon as Villager (uncredited)

Dolly Haas as Miss April (uncredited)

Aileen Haley as Miss July (uncredited)

Ben Hall as Waiter (uncredited)

Harry Hayden as Husband Checking Wife's Coat (uncredited)

Dick Haymes as Member of The Pied Pipers (uncredited)

Dell Henderson as Flunky (uncredited)

John Huddleston as Member of The Pied Pipers (uncredited)

Delos Jewkes as Singer (uncredited)

Charles Judels as Innkeeper (uncredited)

Faith Kruger as Singer (uncredited)

Mitchell Lewis as Rebel Opening Door (uncredited)

Chuck Lowry as Member of The Pied Pipers (uncredited)

Marilyn Maxwell as Miss February (uncredited)

Claire McDowell as Subway Passenger (uncredited)

Art Miles as Marching Rebel on King Louis' Right (uncredited)

Six Hits and a Miss as Singers (uncredited)

Hans Moebus as Club Patron (uncredited)

Buddy Morrow as Member of Tommy Dorsey's Orchestra (uncredited)

Sol Murgi as Villager (uncredited)

Joyce Murray as Dancer (uncredited)

David Newell as Man Getting Champagne (uncredited)

Paul Newlan as Marching Rebel on King Louis' Left (uncredited)

Ruth Ownbey as Miss September (uncredited)

Emory Parnell as Gatekeeper (uncredited)

Paul Power as Reporter (uncredited)

Sheila Rae as Dancer (uncredited)

Gene Ramey as Flunky (uncredited)

Virginia Rees as Singer (uncredited)

Mitchell Rhein as Villager (uncredited)

Buddy Rich as Member of Tommy Dorsey's Orchestra (uncredited)

Cyril Ring as Man Watching Radio Interview (uncredited)

Jo Stafford as Member of The Pied Pipers (uncredited)

Harry Stanton as Singer (uncredited)

Andrew Tombes as Mr. McGowan (uncredited)

Lana Turner as Lana Turner (uncredited)

Dorothy Tuttle as Dancer (uncredited)

Michael Visaroff as Flunky (uncredited)

Pierre Watkin as Ambrose (uncredited)

Allan Watson as Singer (uncredited)

Eve Whitney as Miss August (uncredited)

Kay Williams as Miss May (uncredited)

Don Wilson as Radio Interviewer (uncredited)

Clark Yocum as Member of The Pied Pipers (uncredited)