The purple pieman is a character from Strawberry Shortcake. I've never seen the show, but I looked him up, and this is what it said:
"The Purple Pieman was introduced in Strawberry Shortcake's first adventure, The World of Strawberry Shortcake, where he succeeded in flooding Strawberryland and stealing all the berries in the valley. This was, unfortunately, the closest the Pieman ever came to a decisive victory over Strawberry Shortcake. Hereafter, the Purple Pieman merely harassed the residents of Strawberryland. He admitted in Strawberry Shortcake in Big Apple City that he has an 'evil conscience,' but he rarely does anything that is more than mildly mischievous.
The Purple Pieman lives in a ramshackle tower of cookware dubbed Porcupine Peak. In his tower, he has a wealth of baking supplies, such as ovens, pans, and dough. The Pieman also possesses a magic pie tin, which he sometimes uses to spy on the residents of Strawberryland. While he is a clever liar and cheat, he is an admittedly poor baker. The Purple Pieman frequently refers to himself in the third person, and always performs a quick jig after doing so. He dislikes snakes and Sour Grapes' singing, but hates Strawberry Shortcake's 'Berry Talk' above all else.
The Purple Pieman has a flock of Berry Birds, which he uses to steal berries and eavesdrop on the denizens of Strawberryland. The largest Berry Bird is called Captain Cackle."
I got this from wikipedia, so the information might be off.