It must be hard to be rich and famous sometimes- you never really know who you can trust. In Dane Cook’s case, it appears that the comic can’t even trust his own brother. Cook has employed his brother as his financial and business manager since his career started taking off in the late 90s. But it looks like his brother decided to pay himself with some of Dane’s millions without keeping him in the loop – and now the cops are involved.

Talk about keeping it in the family — sources tell TMZ Dane Cook’s brother (who was also his business manager) has been arrested for allegedly stealing millions from the comedian.

Darryl McCauley — who was in charge of Cook’s financial affairs since the 90s — was arrested today by the Massachusetts State Police and charged with three counts of larceny and forgery.

Authorities say in one case, Dane’s bro forged a $3 million check and deposited it in his account.

McCauley will be arraigned tomorrow in Woburn District Court.

[From TMZ]

If only this were the first instance of something like this- but it isn’t. Lots of celebs end up being fleeced by family or close friends. For Dane, it probably couldn’t come at a worse time. His last movie, “My Best Friend’s Girl,” was a total flop, and his once record-breaking career as a stand-up comedian seems to have faded. Now, he’s more often the butt of other comedian’s jokes than the joke man. There’s no word on who turned Daryl into the authorities or how Cook discovered the missing $3 million. But I’m sure this is going to make the next family get-together more than a little awkward.

Dane Cook is shown on 10/16/08 at the Fallout 3 video game launch party. Credit: WENN