Shelley Winters (Minnie Marx), Lewis J Stadlen (Julie Marx (Groucho)), Daniel Fortus (Adolph Marx (Harpo)), Arny Freeman (Leonard Marx (Chico)), Alvin Kupperman (Herbie Marx (Zeppo)), Irwin Pearl (Milton Marx (Gummo)), Gary Raucher (Sam Marx (Frenchie)), Mort Marshall (Al Shean), Julie Kurnitz (Mrs. McNish), Richard B Shull (Sandow, The Great), Roland Winters (E.F. Albee), Gene Ross (Theatre Manager), Casper Roos (Bert Robwell), Jean Bruno (Mrs. Flanagan), Jacqueline Britt (Mrs. Krupnik), Stephen Reinhardt (Telegraph Boy), Merwin Goldsmith (Hochmeister), Jacqueline Britt (Miss Murdock), Lynne Gannaway (Miss Taj Mahal), Vicki Frederick (Miss Eiffel Tower), Evelyn Taylor (Acrobat), Marjory Edson (Cindy), Ronn Hansen (Sidebark), Richard B Shull (Maxie), Doug Spingler (Cop), Jean Bruno (Harpist), Marjory Edson (Miss White House)