Frankie Howerd ... Ko-Ko Flintridge Stubby Kaye ... Judge Herbert Mikado / Charlie Hotfleisch Mike Winters ... Mike Bernie Winters ... Bernie Tommy Cooper ... Pooh-Bah, Private Detective Dennis Price ... Ronald Fortescue Peter Barkworth ... Fanshaw Jacqueline Jones ... Katie Shaw Kevin Scott ... Hank Mikado Jill Mai Meredith ... Yum-Yum Burt Kwouk ... Art School Teacher Lionel Blair ... Nanki Pete Murray ... Man #1 in Boudoir Ed Bishop ... Man #2 in Boudoir Tsai Chin ... Pitti-Sing Glen Mason ... Harry Dermot Walsh ... Elmer Carole Shelley ... Mrs. Smith C. Denier Warren ... Mr. Smith Yvonne Shima ... Peep-Bo Kenji Takaki ... Ho Ho The John Barry Seven ... Themselves Shirley Eaton Kenneth Connor Charles Hawtrey Hattie Jacques Terence Longdon Bill Owen Leslie Phillips Joan Sims Susan Stephen Kenneth Williams Wilfrid Hyde-White Susan Beaumont Norman Rossington Jill Ireland Ann Firbank Irene Handl Susan Shaw Michael Medwin