SuperMarioJustin4

Justin Reeder Jr., also known as SuperMarioJustin4, is one of the main protagonists of the Slimey & SMJ4 series. He is the best friend of Slimey, the twin brother of Justine and the son of Mr. Reeder. Justin is voiced by Tom Kenny, the voice behind SpongeBob SquarePants, the Ice King from Adventure Time, and many more. Some of SMJ4's impressions are done by impressionist Brian Hull. His singing voice is Jason Paige, the singer of the Pokémon theme song.

Personality
Like Slimey, he is very easygoing and lighthearted. However, his sense of humor has more of a slapstick comic-type style and is kind of naive, unlike Slimey. He generally loves being comical and sometimes spends time making 3D models of logos, especially the 20th Century Fox logo. He has a fairly clean comedy delivery to him and often defies the laws of physics, even going as far as to break the fourth wall.

Appearance
He appears a tall human wearing the same clothes as the mascot of Nintendo, Mario, except he has blonde hair.

Slimey
Justin and Slimey make the best of friends, as they both make an astounding team with their cartoonish abilities and their tenacity. They sometimes like to play pranks on each other.

Mr. Reeder
Mr. Reeder is Justin's father.

Justine
Justine is Justin's twin sister.

SMJ4.blend1
The fake SMJ4.blend1 started off as a demonic killer towards Justin as he would often try to relentlessly kill him, but after the first season, he became less of a monster and simply acted as a jerk around Justin. He would constantly play spiteful tricks on him and get into arguments with him, since they both share a bitter rivalry.