Hollywood actor Leonardo Dicaprio is a regular at Hugh Hefner's infamous Playboy mansion parties, but prefers to attend in disguise. Hefner revealed the Titanic star causes the most excitement when he parties at the Homby Hills mansion in Los Angeles, but says the actor does not like to draw attention to himself. He says, "Certainly in the 70s Warren Beatty was having a very good time here. He and Jack (Nicholson) were regulars. More recently, I suppose, Leonardo DICaprio, though he comes to the Halloween parties with his buddies but in disguise. "Last time they came as monkeys. And there were about six of them and you couldn't tell who was who."