The Master Prank Caller

{{Infobox The Master Prank Caller is a character seen in Regular Show. His first and (so far) only appearance on the episode Prank Callers.
 * Box title = Master Prank Caller
 * Row 1 title = Name
 * Row 1 info = Master Prank Caller
 * Row 2 title = Gender
 * Row 2 info = Male
 * Row 3 title = Age
 * Row 3 info = Old Man (unknown)
 * Row 4 title = Species
 * Row 4 info = Human/Telephone
 * Row 5 title = Job
 * Row 5 info = Prank-calling
 * Row 6 title = First Apppearnace
 * Row 6 info = Prank Callers
 * Row 7 title = Voice Actor
 * Row 7 info = Sam Marin

Information
The Master Prank Caller is as his name suggests, the master of all prank callers. He can prank anyone, anytime by talking to them on a phone. He is a large 80's style cell phone with human arms and legs. He later revealed to be just a man in a cell phone costume. He can get anything he needs just by dialing numbers to get a 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 prank him. However, it goes wrong and they are transported to 1982 by him. They try to return to the present by sending the Master Prank Caller, Pops, and Skips there. After a long chase, they stop him and return to the present. There he tells Mordecai and Rigby, he only wanted to prank calls and they become friends and prank-call Benson.

Pranks

 * "Hello?" "Uh, yes, this is Imasure." "Imasure who?" "I'ma sure glad I ain't joe mama! Oh yeah, you just got pranked by the Master Prank Caller!"
 * "Hello?" "The 1980's called, they want their phones back!"
 * "Hello?" The 70's called, they can their couch back!"

Trivia

 * He is voiced by the person who voices Muscle Man.