David Niven

as Sir Charles Litton

Peter Sellers

as Chief Insp. Jacques Clouseau (archive footage)

Capucine

as Lady Simone Litton

Herbert Lom

as Chef Inspektor Charles Dreyfus

Richard Mulligan

as Clouseau's Father

Joanna Lumley

as Marie Jouvet

Julie Andrews

as Charwoman

Robert Loggia

as Bruno Langois

Burt Kwouk

as Cato Fong

Harvey Korman

as Prof. Auguste Balls

Leonard Rossiter

as Superintendant Quinlan

Ronald Fraser

as Dr. Longet

William Hootkins

as Taxi Driver

Graham Stark

as Hercule Lajoy

Peter Arne

as Col. Bufoni

André Maranne

as Sergeant François Duval

Marne Maitland

as Deputy Commissioner Lasorde

Harold Kasket

as President Sandover Haleesh

Liz Smith

as Martha Balls (archive footage)

Danny Schiller

as Cunny (archive footage)

Denise Crosby

as Denise, Bruno's moll

Kathleen St John

as Nanna

Harold Berens

as Hotel Clerk

Daniel Peacock

as Clouseau, age 18

Lucca Mezzofanti

as Clouseau, age 8

Madlena Nedeva

as Mme. Dreyfuss

Arthur Howard

as Arthur, Bruno's butler

Weston Gavin

as 1st Mafia Boss

Marc Smith

as 2nd Mafia Boss

John Cassady

as 3rd Mafia Boss

Gary Whelan

as 4th Mafia Boss

Joe Praml

as 5th Mafia Boss

Christopher Reich

as Gino Rossi

Robert Rietti

as Various roles (voice)

Colin Blakely