Accidently created by Dr Fettle, when Oddbod's lost finger was subjected to an electrical charge. Following his escape from the police lab, Junior makes his way to the Bide-A Wee rest home, where he is initially mistaken for his 'father' by Orlando and Valeria.
After a period of training, he is sent out on his first girl-catching assignment - creating a hole in the wall due to his inability to use the door! Upon his return with Emily Bung, Junior is put on a recharge, only to be reactivated in order to deal with Sgt Bung and Mr Potter, who come to the house in search of the disguised Slobotham, who had been snatched by Oddbod.
Junior and his father were killed during a fight with the temporarily transformed Albert.