Voice actor: Gary Anthony Williams
Persona: foul mouthed, bad tempered, abrasive, obnoxious, grumpy, angry
Grankoop is one of the latest characters. He is essentially the Mario version of Uncle Ruckus from the Boondocks. But of course, he is more kid friendly. He is an old bad tempered koopa who claims to have had a mother who was once a toad, but was transformed into a koopa by a Magikoopa, then forced to marry a Koopa Troopa (of course, his mother lied to him). He disassociates himself from the Koopas as much as possible as a result of this excuse, and is outspoken in his hatred of Bowser and the other Koopas on the show.
The main cause for his personality and view of the world is due to his mother's rather poor upbringing. She is an extremely deluded and damaged woman who despite not approving of Bowser, believes her whole life would have been better if she had just been a Toad.