In an episode where Earl sets out to hold a real job, he goes from warehouse dock worker to dreaming of being a salesman. Especially towards the end, the episode turns into an Affectionate Parody of Rudy, which is made all the more funny because one of the salesmen who tortures Earl is played by Sean Astin, and Charles Dutton lampoons his Magical Negro role from that movie as well. "You're six-foot something, a hundred and something..."
May be where Hit Girl learned the art of knife throwing. Chloe Moretz plays a young pageant contestant in the first season. Mike was a cop in Camden before he went to Chicago and joined OA. Joining him on the force: Mimi and Burt Hummel.
Real-Life Relative: Willie the One-Eyed Mailman is played by Bill Suplee, Ethan Suplee's real-life dad.
Throw It In: Never in the script, but Eddie Suplee frequently works with the director to have Randy doing some sort of Funny Background Event that is entirely within his character while Earl is busy with his list item (jumping on a trampoline, trying out the stripper pole, etc).
In the COPS episode one the scrawny police officer accidentally clipped his face with the squad car door when rushing inside the convenience store Randy and Earl were held up in. The actor didn't miss a beat and went on with the scene.
Willie the One-Eyed Mailman was played by Ethan Suplee's actual dad. Greg Garcia said when they met the guy and saw his mustache, they knew they had to work him into the show.