 Aces full real name was never revealed during the series, (first  name confessed to Mel in "Dragonfire" as Dorothy) however it was  later established as being Dorothy McShane when "Doctor Who"  returned in a series of original novels published by Virgin Books  under licence from the BBC. Likewise, Mels last name was never  revealed on air, but according to scripts and press material, her  last name was Bush. The only human characters whose full names have  not to date been revealed in any form are Vicki and Leela.