MCGustavo

MejiaCantilloGustavo, or MCG is a friend of Smg4 and is put in a lot of his bloopers.

He first appeared in Smg4 vs Smg3, along with FM, in which he helps track down whoever is copying SMG4's videos (Smg3)



Trivia

 * MejiaCantilloGustavo.jpg has over 1000 subscribers.
 * He has over 70 videos currently
 * He appaerntly makes great toilet paper.
 * Mario calls him was Marijuana.