Cast (in credits order)
| Groucho Marx | ... | Caesar's Ghost | |
| Harpo Marx | ... | The Merchant of Wieners | |
| Chico Marx | ... | Tomalio | |
| Zeppo Marx | ... | Sammy Brown | |
| Ben Taggart | ... | Mr. Lee, Theatrical Agent | |
| Charles Ray | ... | (archive footage) | |
| Rest of cast listed alphabetically: | |||
| Richard Arlen | ... | (archive footage) | |
| Agnes Ayres | ... | (archive footage) | |
| George Bancroft | ... | (archive footage) | |
| John Barrymore | ... | (archive footage) | |
| George Beban | ... | (archive footage) | |
| Noah Beery | ... | (archive footage) | |
| Wallace Beery | ... | (archive footage) | |
| Sarah Bernhardt | ... | (archive footage) | |
| Clara Bow | ... | (archive footage) | |
| William 'Stage' Boyd | ... | (archive footage) | |
| Mary Brian | ... | (archive footage) | |
| Betty Bronson | ... | (archive footage) | |
| Billie Burke | ... | (archive footage) | |
| Irene Castle | ... | (archive footage) | |
| Lon Chaney | ... | (archive footage) | |
| Ruth Chatterton | ... | Self (archive footage) | |
| Maurice Chevalier | ... | (archive footage) | |
| Marguerite Clark | ... | (archive footage) | |
| Ethel Clayton | ... | (archive footage) | |
| George M. Cohan | ... | (archive footage) | |
| Claudette Colbert | ... | (archive footage) | |
| Ronald Colman | ... | (archive footage) | |
| Betty Compson | ... | (archive footage) | |
| Robert Coogan | ... | (archive footage) | |
| Gary Cooper | ... | (archive footage) | |
| Dorothy Dalton | ... | (archive footage) | |
| Bebe Daniels | ... | (archive footage) | |
| Marion Davies | ... | (archive footage) | |
| Lya De Putti | ... | (archive footage) | |
| Frances Dee | ... | (archive footage) | |
| Elliott Dexter | ... | (archive footage) | |
| Richard Dix | ... | (archive footage) | |
| Marie Doro | ... | (archive footage) | |
| Billie Dove | ... | (archive footage) | |
| Robert Edeson | ... | (archive footage) | |
| Douglas Fairbanks | ... | (archive footage) | |
| Dustin Farnum | ... | (archive footage) | |
| Geraldine Farrar | ... | (archive footage) | |
| Elsie Ferguson | ... | (archive footage) | |
| Ralph Forbes | ... | (archive footage) | |
| Pauline Frederick | ... | (archive footage) | |
| Dorothy Gish | ... | (archive footage) | |
| Lillian Gish | ... | (archive footage) | |
| James K. Hackett | ... | (archive footage) | |
| William S. Hart | ... | (archive footage) | |
| Raymond Hatton | ... | (archive footage) | |
| Phillips Holmes | ... | (archive footage) | |
| Jack Holt | ... | (archive footage) | |
| Miriam Hopkins | ... | (archive footage) | |
| Gareth Hughes | ... | (archive footage) | |
| Emil Jannings | ... | (archive footage) | |
| Rod La Rocque | ... | (archive footage) | |
| Lila Lee | ... | (archive footage) | |
| Harold Lloyd | ... | (archive footage) | |
| Herbert Marshall | ... | (archive footage) | |
| Vivian Martin | ... | (archive footage) | |
| May McAvoy | ... | (archive footage) | |
| Thomas Meighan | ... | (archive footage) | |
| Adolphe Menjou | ... | (archive footage) | |
| Georges Metaxa | ... | (archive footage) | |
| Mae Murray | ... | (archive footage) | |
| Conrad Nagel | ... | (archive footage) | |
| Pola Negri | ... | (archive footage) | |
| Olga Petrova | ... | (archive footage) | |
| Irving Pichel | ... | (archive footage) | |
| Jack Pickford | ... | (archive footage) | |
| Mary Pickford | ... | (archive footage) | |
| Wallace Reid | ... | (archive footage) | |
| Theodore Roberts | ... | (archive footage) | |
| Charles 'Buddy' Rogers | ... | (archive footage) | |
| Constantine Romanoff | ... | (archive footage) | |
| Charles Ruggles | ... | (archive footage) | |
| Sylvia Sidney | ... | (archive footage) | |
| Gloria Swanson | ... | (archive footage) | |
| Blanche Sweet | ... | (archive footage) | |
| Lilyan Tashman | ... | (archive footage) | |
| Regis Toomey | ... | (archive footage) | |
| Rudolph Valentino | ... | (archive footage) | |
| Florence Vidor | ... | (archive footage) | |
| Fannie Ward | ... | (archive footage) | |
| Bryant Washburn | ... | (archive footage) | |
| Kathlyn Williams | ... | (archive footage) | |
|
|
Davison Clark | ... | Mr. Lee the Theatrical Agent (uncredited) |
| The Marx Brothers | ... | Themselves (uncredited) | |