Oggy and Olivia but they were no longer the lovable characters from their cartoon world; Oggy and the Cockroaches show. They're deadly highly-trained professional master assassin cat in their element. But Golgo 13 and Revy's personality and traits took over them: Oggy is calm, quiet, cold-hearted and ruthless. Olivia is troubled, loud, rude, sarcastic, deadly, competitive, short-tempered, cynical, confident, merciless, sadistic and considerably wild aggressive. Being humorous and witty talker.