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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 2017 | Doctor Who: Shada | Wilkin | ★★★★☆ |
| 1992 | Doctor Who: Shada | Wilkin | ★★★☆☆ |
| 1984 | Las aventuras de Sherlock Holmes | Morse Hudson | ★★★★☆ |
| 1979 | Minder | Cafe Proprietor | ★★★☆☆ |
| 1969 | Departamento S | Eldon | ★★☆☆☆ |
| 1968 | Chitty Chitty Bang Bang | Minister | ★★★☆☆ |
| 1967 | Los brujos | Customer in China Shop | ★★★☆☆ |
| 1967 | Morning, Noon and Night | ☆☆☆☆☆ | |
| 1967 | La mitad de seis peniques | Fat Boy | ★★★☆☆ |
| 1966 | The Sandwich Man | Fred - Sandwich Man in Suit of Armour | ★★★☆☆ |
| 1964 | The Comedy Man | Gerry | ★★★★☆ |
| 1964 | A Home of Your Own | Glazier | ★★★☆☆ |
| 1962 | Jigsaw | ★★★★☆ | |
| 1962 | A volante y a lo loco | Actor in Scottish TV Show | ★★★☆☆ |
| 1961 | Double Bunk | Charlie | ★★★☆☆ |
| 1960 | School for Scoundrels | Proudfoot | ★★★★☆ |
| 1960 | Inn for Trouble | George | ★★★☆☆ |
| 1959 | No Hiding Place | ★★☆☆☆ | |
| 1958 | Carry On Sergeant | Andy Calloway | ★★★☆☆ |
| 1958 | Fair Game | ☆☆☆☆☆ | |
| 1955 | Fun at St. Fanny's | Fatty Gilbert | ★★★☆☆ |
| 1954 | Monsieur Ripois | ★★★☆☆ | |
| 1953 | Top of the Form | ★★★☆☆ | |
| 1952 | Los papeles del Club Pickwick | Joe, the Fat Boy | ★★★☆☆ |
| 1952 | Billy Bunter Of Greyfriars School | Billy Bunter | ☆☆☆☆☆ |
| 1948 | Miranda | Lift Boy (uncredited) | ★★★☆☆ |
| 1947 | Take My Life | Newspaper Seller at Station (Uncredited) | ★★★★☆ |
| 1941 | The Ghost of St. Michael's | Pupil at Rear of Class | ★★★☆☆ |
Películas destacadas de Gerald Campion
Estas son las películas más destacadas en las que ha trabajdo:
