6. DARRYL MCCAULEY

Brother of: Dane Cook

The only thing worse than a sibling who borrows your shit without telling you: A sibling who borrows, oh, around $3 million after forging themselves a nice fat check from your account.

That’s exactly what Darryl did after his famous half-brother-from-a-shared-mother was gracious enough to let him ride his coattails as his business manager. Adding further insult to injury, the comedian’s sketchy sibling allegedly used some of the cash to buy himself several cars and take a sweet road trip across the country—without even thinking to invite Dane!

He’s since been sentenced to prison. Karma, she can be a bitch.