pies (hence his nickname). Walter the Softy (voiced by Judy Bennett) is Dennis' next-door neighbour, rival and major enemy. Always exasperated with Dennis' mischief and often tries to come up with ideas to humiliate and outshine him. But he is always unsuccessful as his plans tend to backfire. Matilda (voiced by Eve Karpf) is Walter's best friend and girlfriend, often seen with him and swooning over him. Matilda will also give Walter cucumber sandwiches with the crust cut off on their picnics. Sgt. Slipper (voiced by Colin McFarlane) is a local policeman and another enemy of Dennis, usually being the first one to deal with Dennis' antics outside his house, and often is seen with the Colonel. He is a bit clumsy at times and often overreacts to things. However, considering that there have been occasions where he and Dennis have encountered a common enemy, there have also been times when he proves himself to be extremely responsible, adept (enough to both take on the role of judge and pilot a police aircraft in 'The Trial') and effective at his job. The Colonel, Godfrey; voiced by John Baddeley A neighbour of Dennis' family who lives across the road. He is a stereotypical military veteran who is forever seen in military uniform, his house resembles a military bunker and he even has a tank parked in his front garden. Likely, he is still in active (albeit limited) service, as he is occasionally seen conducting meetings at the nearby military base and is sometimes accompanied by a platoon of soldiers to tackle an opponent (usually Dennis). The Colonel often recalls memorable battles in his life and is considered an enemy of sorts by Dennis. However, there are occasions when the both of them join forces against a common enemy, such as in the episode 'The Trial', during which they, along with Sergeant Slipper and the Colonel's cousin Hugo, set off to find Gnasher (after the Colonel had made a false accusation against him). Foo Foo is Walter's pet poodle and Gnasher's rival. She has been seen in a few episodes with Walter holding her while he's scolding Dennis. She tries to beat Gnasher at his own game but fails. Even though she does not appear as often as her master, Foo Foo is a minor antagonist. Minor and guests Mrs. Pie Face, Kevin Pie Face's Mum (voiced by Jill Lidstone) Mr. Pie