|Portrayer||Annie Leake (1985)|
|First seen||"To Hull and Back"|
|Last seen||"To Hull and Back"|
|Date of birth||Circa 1916|
|Family|| Harry (husband - deceased)|
Ruby Slater is the mother of ex-police officer Roy Slater. Ruby appeared in the 1985 Christmas special "To Hull and Back", sitting in The Nag's Head watching an old war film with Albert Trotter talking about how her son Roy arrested his father and her husband Harry for having a defective rear light on his bicycle. After Roy went to jail for smuggling diamonds, Harry died, and Ruby wrote a letter to the prison governer not to give her son compassionate parole.