Danny DeVito may be cruel and scheming on "It's Always Sunny in
Philadelphia," but as Homer's long-lost half-brother, Herb, in Season 2,
he's a hard-working CEO who put himself through college and founded his
own car company. Of course, Homer destroys Herb's fortunes soon after
meeting him. Luckily, in Season 3, he makes most of his money back — and
forgives Homer — after inventing a device that translates baby talk.
The Best 'Simpsons' Guest Stars
From regulars like Kelsey Grammer to one-offs like Winona Ryder, stars love Springfield.