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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 1948 | Who Killed Doc Robbin? | Police Sergeant (uncredited) | ★★☆☆☆ |
| 1947 | Desesperado | Traveling Salesman (uncredited) | ★★★☆☆ |
| 1941 | New York Town | Spectator in Broadcast Studio (uncredited) | ★★★★★ |
| 1940 | Turnabout | Minor Role (uncredited) | ★★★☆☆ |
| 1939 | Hollywood Cavalcade | Roscoe 'Fatty' Arbuckle | ★★★☆☆ |
| 1939 | Let Us Live | Peter Roxbury (uncredited) | ★★★☆☆ |
| 1938 | Yo soy la ley | Tubby - Law Student (uncredited) | ★★★☆☆ |
| 1936 | Cásate conmigo... si puedes | ★★★☆☆ | |
| 1935 | False Pretenses | Gardner | ★★★☆☆ |
| 1935 | Moonlight on the Prairie | Fat Saloon Cowboy | ★★★☆☆ |
| 1935 | El hombre de los brillantes | Man at Racetrack | ★★★☆☆ |
| 1932 | Faithless | Party Guest | ★★★☆☆ |
| 1931 | Night Life in Reno | Red | ★★☆☆☆ |
| 1930 | One Night at Susie's | Slim (Uncredited) | ★★★☆☆ |
| 1930 | Bulls and Bears | Quigley's Stock Partner | ☆☆☆☆☆ |
| 1930 | Moonlight and Monkey Business | Honeymooner | ☆☆☆☆☆ |
| 1929 | Navy Blues | Chubby Blonde Sailor | ★★★★☆ |
| 1929 | La Melodía de Broadway | Stew - Mr. Zanfield's Assistant (uncredited) | ★★★☆☆ |
| 1929 | Pep Up | ☆☆☆☆☆ | |
| 1929 | Wall Street | Billy | ★★★☆☆ |
| 1928 | Virgin Lips | Slim | ★☆☆☆☆ |
| 1926 | Her Sacrifice | Cyril | ☆☆☆☆☆ |
Películas destacadas de Marshall Ruth
Estas son las películas más destacadas en las que ha trabajdo:
