100 Things To Do Before High School Wiki

Mark Chernoff is a student at Pootatuck Middle School. He is portrayed by Gerdan Burton.



Mark is shown to be scared of the janitor ghost story, so it is likely he does not like scary stories or is easily frightened. He is shown to be gassy.

Episode Appearances

Season 1


100 Things to Do Before High School

Mark has science class with CJ, Fenwick, and Crispo. During class, he passes gas and then tries to cover it up with a cough.

Run with the Bears Thing!

Mark at first looks confident at the prospect of completing a fifteen page English exam, but he ends up getting sick.

Start a Garage Band Thing!

Mark enters the music festival Pootaroo for a chance to win a gift card to the Spaghetti Yard. He joins the group The Rockin' Maracas with three other students. People are amused by their performance at the festival.

Stay Up All Night Thing!

Mark is one of the twenty students who signed up first to attend the Pootatuck Sleepover. He verbally expresses discomfort over the janitor ghost story.

Find Your Super Power Thing!

CJ says that Mark's superpower is clearing out a room with "one turbo back blast." Some people exit a smelly room, and Mark walks out to say that he did not cause the smell.

Later in the episode, CJ greets Mark and he tells her, "It wasn't me," meaning that he did not pass gas. CJ does not believe him, as she hurries to her next class after this.

In study hall, Fenwick smells bad cheese and realizes Mark is about to pass gas.

Join a Club Thing!

Mark is one of the many students in line to sign up for the waiting list to join the Save the Bonobos club.

Become a Millionaire and Give It All Away Thing!

Mark is one of the eight people CJ enlists to pool their money together so the nine of them could go to Sir Soaky's Typhoon Splash City Water Park Lagoon.

Leave Your Mark Thing!

Mark is one of the students who watches as Fenwick attempts to fix the south hallway water fountain.

Master a Thing Thing!

Mark is seen excelling in wood shop. He also helps CJ with her training.

Raise Your Hand Thing!

Fenwick tries to get a high five from Mark, but does not succeed.


  • Gerdan is credited as Gerdan Miguel Burton.
  • Timmy Toot-Toot is a character from Ned's Declassified School Survival Guide who is also shown to be gassy.
  • He and Aubrey Garcia are good at wood shop class.


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To view the Mark Chernoff gallery, click here.

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