John Paul "J.P." Mercer is the tritagonist of the Cartoon Network series Craig of the Creek. He is a 12-year-old boy in middle school who hangs out at the Creek with his best friends Kelsey and Craig. He is voiced by Michael Croner.
Physical appearance
J.P. is tall compared to most characters in the series. He has light skin, a large head with proportionally smaller cheeks, black eyes and eyebrows, and red hair. His sclera are only drawn in close-ups and other stylized scenes, e.g., the title card for "The Other Side: The Tournament" and the scene where he and Kelsey are discovered outside the Sewer Queen's house by the Sewer Kids in "Sink or Swim Team". His irises are shown in "Opposite Day", revealing his eye color to be blue.
J.P. wears a long-sleeve orange and white striped V-neck hockey jersey, black shoes, and tan pants with a tear on his right knee.
Personality
J.P. is optimistic, friendly, adventurous, and insightful, for better or worse. He is very imaginative, sometimes to the point of seeming detached from reality, yet at other times he is hyper-aware, sometimes even breaking the fourth wall. Such statements usually go over other characters' heads, which can cause others to perceive him as unintelligent. He is relatively indifferent to the negative opinions some have of him, instead standing up for his friends.
As time goes on, he becomes more respected by kids and adults alike, sometimes even impressing Craig and Kelsey.
Relationships
Laura Mercer
Laura has to take care of J.P, given that their mother works in the morning and afternoon. As irritating as J.P. can be to her, given his reckless and outright idiotic behavior, Laura loves him as a younger brother and takes care of him like a mother.
John Mercer
John is his dad who lives in Canada, possibly implying J.P.'s parents are divorced, but on good terms. He was the one who initially gave J.P. his orange hockey jersey, which represents a Canadian hockey team. In "The New Jersey," J.P. talks about the significance of the jersey in connection with his dad. John sent a replacement jersey in the wrong color before sending another in orange again. John apologized to J.P. for not considering the sentimentality of the original jersey.
Paula Mercer
Paula is his mom, who works as a pilot. Because of her job, she works long hours and comes home late. J.P. values his time watching Saturday Late Night Live with her when she comes home. He loves his mom and was excited for his friends to finally meet her at his sleepover in "Sleepover at JP's". She brings him souvenir fridge magnets from her travels.
Craig
J.P. and Craig are best friends. They are always together with their other best friend, Kelsey. Together, they're known as the Stump Kids.
Kelsey
J.P's best friend, along with Craig. Together, they're known as the Stump Kids.
Mortimor
TBA
Omar
Omar and J.P. had few interactions before being friends. Once, when visiting Omar at the overpass, J.P. slipped a little on their raft, causing Omar to break into laughter. When Omar becomes an honorary Stump Kid, they bond over their enjoyment of the show "Cheese Champions", texting each other GIFs, poems, and discussions. J.P. admits he would have loved to talk about "Cheese Champions" with Craig instead, but Craig hates the show.
Kit
TBA
Bobby
J.P. met Bobby in "You're It" when he bumped into him, causing Bobby to drop his candy. J.P. helped him pick up his candy. They are amiable toward each other, but don't spend time together.
In "Memories of Bobby", J.P. mourned Bobby's supposed departure.
Elders of the Creek
TBA
Mackenzie
Mackenzie initially does not like J.P. In "JPony", she sabotages the horse course to make him fail. She believed that J.P would assume leadership of the Horse Girls and make them forget about her. However, J.P. did not intend on doing this and did not want to be a horse anyways.
Maney
J.P. and Maney have mutual affection. She and J.P. spend the majority of the episode "JPony" being together to the dismay of the other Horse Girls. Even though J.P. does not share her interest in horses, preferring trucks instead, Maney respects his differences.
In "Tea Timers' Ball", he takes Maney to the ball and dances with her.
Marie
TBA
Handlebarb
TBA
Warpspeed
TBA
Todd
TBA
Cannonball
TBA
Sewer Queen
In "Lost in the Sewers", the Sewer Queen gives J.P. a firm handshake to repay him for his help unclogging the Sewers. He is disappointed because she gave Craig a pair of water shoes and Kelsey a cart.
Jason
TBA
Tony
TBA
Boris
He and Boris antagonize each other in "The Invitation", but like Craig and Jason, they join forces to foil the Tea Timers' plan.
In "Sleepover at JP's", Boris sympathizes with J.P's desire to introduce his friends to his mother and releases the Stump Kids and Bobby from jail.
Yustice
TBA
Stacks
TBA
King Xavier
TBA
Maya
TBA
Eliza
TBA
Jane
TBA
George
Garry Wisconsin
This is JP's neighbour's sleepwalk alter ego. as seen in the episde Sleep Talk JP JP's alter ego has a workplace friendship with him
Episode appearances
Gallery

J.P. Mercer.
Trivia
- J.P.'s Harry Potter house is Hufflepuff.[2] due to his down-to-earth and friendly personality.