| Barry Mainwaring | |
| Born | Unknown |
| Occupation | Travelling salesman |
| Relatives | Edmund Mainwaring (father) George Mainwaring (brother) |
| Affiliations | N/A |
| Series information | |
| Only appearance | My Brother and I |
| Portrayed by | Arthur Lowe |
| List of Characters | |
Barry Mainwaring was the long-lost brother of Captain George Mainwaring, he appeared once in the entire series, in My Brother and I.
Biography[]
He and his brother apparently always clash due to their differing personalities, with Barry repeatedly referring to his brother as "po-face". He worked as a travelling salesman for a joke shop, and was an alcoholic.