Buck Grunt is the youngest son of General Buzz Grunt and the deceased Lyla Grunt. He is shown to be treated better by his father than his elder brothers, Tank Grunt and Ripp Grunt. He's also friends with Jill Smith, despite the feud between his family and hers. Overall, he gets along with his family, but sometimes is distant with Tank and General Buzz. Although it's not that noticeable in children, he is very overweight. He wants to be a pet stylist to the stars.
|The Grunt Family|
|Rock - Wanda - Chip - Missy - Buzz - Lyla - Tank - Ripp - Buck|