The Master Prank Caller

The Master Prank Caller, is a character seen in Regular Show. His debut and (so far) his only appearance was during Prank Callers.

Information
The Master Prank Caller is, as his name suggests, the master of all the prank calls. He can prank anyone at anytime by talking to them on a phone. He is a large 80's style cell phone with human arms and human legs. He is later revealed to be just a man in a cell phone costume. He can get anything he needs just by dialing numbers to get anything he wants (limo etc.). He can even send prank-callers he pranks to various years in the past at least.

He first appears in Prank Callers, pranking an old lady on the internet. Mordecai and Rigby decide to be prank-callers like him and try to prank him. However, it goes wrong and they are transported to 1982 by him. They try to return to the present by sending Benson, Pops, and Skips there to help them prank the Master Prank Caller. After a long chase, they stop him and return to the present through a place filled with doors and a specific year is labeled above each. They find the door and go back home. Then he tells Mordecai and Rigby that all he wanted to do was to do prank calls like them and so they become friends and prank-call Benson.

List of Prank Calls

 * "Hello?" "Uh, yes, this is Imasure." "Imasure who?" "Imasure glad that I ain't Joe Mama! Oh yeah, you just got pranked by The Master Prank Caller!"
 * "The 1980's called, they want their cell phones back!"
 * "Hello?" "1,2,3, The 70's called, they want their chair back!" (along with Mordecai and Rigby)
 * "Uh, hello?" "The 80's called, they STILL wantcha'!"
 * "Leave us alone" "Don't you ever hang up!"
 * "Hello?" "Nice ride, but I like mine better!"
 * "Hello?" (Mordecai) Hey, I've got the 50 pizzas here you ordered." "Sounds great! Bring 'em over!" "Uh, you ordered 50 pizzas?" "Yeah, and hot wings. Get here quick, okay? Your mom's, like, totally starvin!" "Uh... yeah, I gotta go!"
 * "Uh, this is Stan." "Stan who?" "Uh, Stan Stannmenson." "Your name's Stan Stannmenson? Congratulations, that's the dumbest fake name I've ever heard."
 * "Hello, is this the Pizza Guy or Stan Stannmenson?" "Uh, both!" "Now, you listen to me! Nobody pranks The Master Prank Caller! Now, I'm gonna prank you so bad you both're gonna poop-a-nuke. The 1980's called, they want their cell phones back!"
 * "Don't you ever hang up on me!"
 * "Hello?" "This is The Master Prank Caller - " "Uh, hello? Is anybody there?" 'I said this is The Master Prank Caller and -" "Uh, hello, hello?" "I said this is The Master Prank Caller and - WHAT?" "Haha! You just got pranked, ya loser!"

Trivia

 * He is voiced by both Sam Marin and famous actor Tim Curry. Curry has also made a voice appearance on the show as the Evil Hot Dog Leader in "Meat Your Maker".
 * The Master Prank Caller may have somehow inhabited the 1980's (possibly '82), since he is in a '80s esque cellphone.
 * He has the power to call people with his phone's body.