Dan Heder is a spitting image of the actor and he's always mistaken for his brother.
The more famous Heder says, "If you meet me on the street and I say, 'No, it's not him,' it's probably him... People ask, 'Can I get your autograph?' And they'll ask him and he'll say no and it makes me look like a jerk.
"They'll say, 'Whatever, you don't have a twin.' They think it's the worst excuse."