Oggy is a cat, he has light blue body, green eyes, grey tummy and white feet. Oggy usually spends his time either watching television or doing housework - if not chasing the cockroaches. Regardless of the constant mayhem brought on by the cockroaches, Oggy has developed a kind of love-hate relationship together, having endured them for a long time. Whenever he finds himself alone in the house, he will eventually begin to miss the cockroaches along with their pranks (as observed in the episode Priceless Roaches). Oggy's house appears bigger inside, mainly featured within the roller coaster-like staircase scenes. Oggy has come to realize that with no cockroaches, nothing fun or interesting ever happens in his life. Based on executive producer Marc du Pontavice and France Info, the smoothness of Oggy was named after punk rock musician Iggy Pop and also the rock album An upswing and Fall of Ziggy Stardust and also the Spiders from Mars.At the begining of episodes, Oggy, like his predecessor Tom in Tom and Jerry, was the main punching bag in the series. However, in more recent episodes, Oggy continues to be portrayed as heroic, often triumphing over the cockroaches despite the beatings he adopts from their store and Bob. Notable other accomplishments include winning the F1, placing first inside a marathon, and eventually winning over his girlfriend Olivia.
The Cockroaches would be the three cockroach brothers who antagonize other characters, mainly Oggy and Jack. The cockroaches love pranking them so much, when the cats would leave, they would miss them (as seen in the episode Moving Out).
Joey (born 15 June 1991) is really a purple-pink body, purple-blue head roach having a pink eye and yellow eye (pink right eye and yellow left eye, originally red), and the older brother. Despite the fact that he's the smallest roach within the group, more often than not he's the most intelligent, always being the brain in the plans, but may also be made to go solo, because his brothers often think his plans are stupid. He loves money, but his efforts always are unsuccessful, usually ending with him getting swatted or passed.
Marky is a suave heartbreaking, silvery-grey body, green head roach with pink eyes (originally red, but returned within the ending from the episode Teleportation where he's stuck in the ice cubes); he is the tallest and middle brother from the three roaches and frequently doesn't really care about exactly what the two others are doing. While he originally used to love causing mischief just like his brothers, he's grown to be more laid-back in later episodes, though he still enjoys hanging out with Joey and Dee Dee and causing general mayhem like he's always done. His hobbies are dating puppets and reading books. Also, he has bad breath, as revealed in the episode 'It's A Small World' Season 1.
Dee Dee may be the ever-hungry cockroach and youngest of the three. He has a blue body, orange head and green eyes. His appetite sometimes reaches insane proportions, often inducing the consumption of larger animals or other things that would certainly be inedible (such as hyenas once and, because of the effects of a poisonous mushroom in another case, a bug. Other instances range from the fish around the wallpaper Oggy's Clone and a clownfish Diving). He is recognized to like opera. It is sometimes shown that his feet are extremely foul-smelling, the juice they produce is toxic and melt objects like the Xenomorphs in the Alien franchise when they have acid for blood.
Jack is Oggy's cousin. He has a green body, yellow eyes, pale pink tummy and white feet, in the show. He is Oggy's cousin so the opposite of Oggy. Jack is short-tempered, violent, arrogant - an ideal target for the roaches to annoy. He often finds himself building huge machinery, for example roach-catching contraptions, most of the time resulting in them backfiring. He is extremely thinking about chemistry (that's, the more explosive areas of it). Jack often sleeps at Oggy's house. At times, he bullies Oggy. Jack seems to be the strongest character in the show. He loves to showcase, challenge the roaches and date girls - mainly Oggy's sister Monica. He is sometimes seen attempting to offer Monica, but the cockroaches' pranks always lead him to stop short. In one episode, they seem to have a baby together and get Oggy to babysit the youngster. Jack also offers a morbid anxiety about heights, as shown in a number of episodes like 'The Lighthouse Keeper' Season 3. However, in 'The Rise & The Fall' Season 1 it is Oggy with a fear of heights rather than Jack.
Bob is a fierce brown bulldog and Oggy's neighbour. He has severe anger management issues. A running gag within the show has Oggy or Jack doing something which accidentally crushes Bob or shaves his fur or destroys his house, with Bob then pummeling Oggy or Jack off-screen. He doesn't always pummel Oggy, as seen in Baby Boum and Police Academy. He has some sort of friendship with Jack, as notably seen in Olivia. He is known to like boxing.
Olivia is really a white cat and Oggy's new neighbour and new love interest. She loves nature, even Oggy's enemies Joey, Marky and Dee Dee, leading to Oggy acting nice to them every time she's around. She always stops working if somebody hurts any part of nature. She also cares a great deal about her looks; in the episode Olivia's Pimple when she sees a pimple on her behalf face, she refuses to leave her house. In the series last episode 'Oggy Gets Married Featuring Olivia', Olivia and Oggy get wed after a visit to Venice.