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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 1959 | Men into Space | Major Paul Ellis | ★★★★☆ |
| 1954 | Phffft | Boy (uncredited) | ★★★☆☆ |
| 1950 | Arenas Sangrientas | Marine (uncredited) | ★★★☆☆ |
| 1950 | Peligro en las nubes | Sentry | ★★★☆☆ |
| 1950 | Chain Gang | Eddie Jones, convict with sore foot | ★★★☆☆ |
| 1949 | Miss Grant Takes Richmond | Bill - Soda Jerk (uncredited) | ★★★☆☆ |
| 1945 | Over 21 | Little Boy (uncredited) | ★★☆☆☆ |
| 1942 | Junior Army | Cadet Baker | ★★★☆☆ |
| 1942 | Men of the Sky | Little Brother Mathews (uncredited) | ★★☆☆☆ |
| 1940 | Five Little Peppers in Trouble | Tom | ★★★☆☆ |
| 1940 | Susana y Dios | Party Guest (uncredited) | ★★★☆☆ |
| 1939 | Caballero sin espada | Boy Ranger (uncredited) | ★★★★☆ |
| 1938 | Penrod and His Twin Brother | Donald | ★★★☆☆ |
| 1938 | Penrod's Double Trouble | Donald (uncredited) | ★★★☆☆ |
| 1937 | Living on Love | Boy Wanting Painting | ★★★☆☆ |
| 1937 | Penrod and Sam | Wienie | ★★★☆☆ |
| 1937 | Make a Wish | Judge | ★★★☆☆ |
Películas destacadas de Billy Lechner
Estas son las películas más destacadas en las que ha trabajdo:
