Gongo is a guinea pig who turns pink, because he has a serious love of strawberries! He loves nothing better than to ride round in his very own 'Super Diddy Car' (exactly the same as Nurse Diddy’s Diddy Car, only even diddier!). This guy is all about looking as cute as he can, charming Diddy, day in day out, but at the same time, sneaking into her magical bag and joining Nurse Diddy on her many adventures. He is quite obsessed and interested in his body and health, thinking that he might have whatever Nurse Diddy’s patient’s have wrong with them! He gets pinker and pinker when eating his strawberries!