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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 1954 | The Human Jungle | Karns | ★★★☆☆ |
| 1952 | Confidence Girl | Mr. Sheridan | ★★★☆☆ |
| 1952 | The Pride of St. Louis | Houston Mgr. Ed Monroe | ★★★☆☆ |
| 1952 | Glory Alley | Pastor (uncredited) | ★★★☆☆ |
| 1951 | Desert of Lost Men | Dr. Stephens | ☆☆☆☆☆ |
| 1951 | La luz brilló dos veces | Editor | ★★★☆☆ |
| 1951 | Memorias de un Don Juan | Detective Donovan (Uncredited) | ★★★☆☆ |
| 1951 | Aviso de tormenta | Barnet (uncredited) | ★★★☆☆ |
| 1950 | Las campanas de Coronado | Dr. Frank Harding | ★★★☆☆ |
| 1950 | State Penitentiary | Warden-Narrator | ★★★☆☆ |
| 1950 | The Great Jewel Robber | Haley (uncredited) | ★★★★☆ |
| 1949 | Al rojo vivo | Railroad Fireman (uncredited) | ★★★★☆ |
| 1949 | The Red Menace | Father O'Leary | ★★☆☆☆ |
| 1942 | Los diamantes del Halcón | Detective Brody (uncredited) | ★★★☆☆ |
| 1942 | Golf Slappy | Narrator | ☆☆☆☆☆ |
| 1940 | Baila, muchacha, baila | Court Clerk (uncredited) | ★★★☆☆ |
| 1940 | Millionaires in Prison | Deputy Taking Collins to Prison (uncredited) | ★★★☆☆ |
| 1940 | You Can't Fool Your Wife | Mr. Doolittle | ★★☆☆☆ |
Películas destacadas de Leo Cleary
Estas son las películas más destacadas en las que ha trabajdo:
