We've already seen his sister's academic career, so it would feel rude to leave Jake Gyllenhaal off the list. Unsurprisingly, he and his sister attended the same university. She undertook a wide ranging and complex set of qualifications, and he actually took the same courses - Eastern religions and philosophy. He didn't have quite the same enthusiasm. Within a year, he'd dropped out to pursue acting full time.
Gyllenhaal's parents were happy for him to chase his dream - after all, they were all performers themselves - but insisted that he worked to support himself in order to ensure he'd stay serious and committed to his training. As a result, he worked as a bus boy and a lifeguard to bring in money. He is on record as saying that one day he'd like to return to university and finish the degree. He just hasn't quite got around to it yet!