Ludwig
Ludwig Von Koopa is one of the seven Koopalings. His name is derived from the famous composer Ludwig Von Beethoven. Being the oldest, he's one of the (if not the) toughest and strongest Koopaling. He has wild hair and small eyes. In Super Mario Bros. 3 he's the boss of World 7, Pipe Maze. In Super Mario World he's the boss of World 4, Cookie Mountain. He also appears in Mario & Luigi: Superstar Saga and Yoshi's Safari.
Cartoons
In the cartoon series, he was named Kooky Von Koopa and was the typical mad scientist character. He spoke with a German accent and invented wicked devices for his dad to use, including a time machine to prevent the Mario Brothers from even coming to the Mushroom Kingdom (because, in the series, the brothers were from Brooklyn, New York, in the "real world"). He also invented a robot look-alike of Princess Peach that was programmed to turn the Mushroom Kingdom over to Bowser. Kooky's voice was provided by Michael Stark. The only major physical difference between Ludwig and Kooky is that Kooky has untamed hair.