<Li> Kelsey Bern (Georgie Kidder (in the pilot and the first 3 episodes), Noël Wells (episode 4 onward))--A ginger - haired 8 - year - old girl who is one of Craig's friends . She is always seen wearing a cape . She has a pet parakeet, which she identifies as a falcon, named Mortimer who is usually perched on top of her head . She is adventurous and tends to be overly dramatic . She has internal narrations that the others are seemingly aware of . She is raised by her a single widower father . </Li> <Li> John Paul "J.P." (H. Michael Croner)--A tall, Southern accented 13 - year - old boy who is one of Craig's friends . He wears a hockey jersey that is clearly too big for him . He is not the brightest kid, but is very helpful and kind to those around him . His name is short for John Paul, as revealed in "You're It ." In "Under the Overpass", Craig stated that he and Kelsey "found" J.P. through their constant exploration . </Li> <Ul> <Li> Jessica Williams (Dharma Brown in the pilot, Lucia Cunningham in the series)--Craig's younger sister who typically likes to keep everything in check by describing her actions out loud . She is very smart for her age and already shows an interest in the stock market . </Li> <Li> Bernard Williams (Phil LaMarr)--Craig's smarter, yet cynical, older brother who looks down on Craig and his adventures at the creek . He is obsessed with getting good grades and getting into an Ivy League college . He used to play Bring Out Your Beast and showed interest in teaching it Craig . </Li> <Li> Duane Williams (Terry Crews)--Craig's understanding father who works as a personal trainer . </Li> <Li> Nicole Williams (Kimberly Hebert Gregory) - Craig's loving mother who works as a school guidance counselor . </Li> <Li> Alexis (Karen Fukuhara)--Bernard's kindhearted girlfriend who, unlike him, finds Craig amusing . </Li> <Li> Earl Williams (Phil LaMarr in the pilot, Phil Morris in the series)--Craig's grandfather and Duane's father whom he looks up to and inherited his adventurous spirit from . </Li> <Li> Jojo Williams (Saundra McClain)--Craig's grandmother who is part of the city council . </Li> <Li> Kit (Dana Davis)--A kid who runs the Trading Tree at the creek, trading food for other items . </Li> <Li> Mark (Ben Levin)--One of the Elders of the Creek, a teenage boy who is tall slim with brown hair and wears glasses . The character originated from Burnett and Levin's online shorts . </Li> <Li> Barry (Matt Burnett)--One of the Elders of the Creek, a teenage boy who is rather portly and has light brown hair . The character originated from Burnett and Levin's online shorts . </Li> <Li> David (Zachary Steel)--One of the Elders of the Creek, a teenage boy who is shrimpy and has a vellus mustache . The character originated from Burnett and Levin's online shorts . </Li> <Li> Jason (Gunnar Sizemore)--A self - entitled Junior Forest Scout who speaks with a lisp and gets on everyone's nerves . </Li> <Li> Handlebarb (Jessica McKenna)--The tomboy leader of the 10 Speeds . She praises her bike's capabilities and talks like a typical 90's sports commercial . </Li> <Li> Mackenzie (Lauren Lapkus)--The leader of the Horse Girls . She is bossy and claims to be the most fashionable when it comes to horse accessories . </Li> <Li> Melissa (Erin Whitehead)--A member of the Horse Girls . She is the most excited about horses right down to having eaten grass . </Li> <Li> Mangerine "Maney" (Mary Holland)--A member of the Horse Girls . She looks like a horse compared to the rest and is close friends with Kelsey, acting as her steed . She has a crush on J.P. </Li> <Li> Marie (Stephanie Allynne)--A member of the Horse Girls . She is the least excited about horses to the point she finds her friend's fascination with them confusing . </Li> <Li> Sewer Queen (Karen Fukuhara)--As her name implies, she is the leader of the kids who play in the sewers and is close friends with Craig and his friends . She has webbed toes . </Li> </Ul> <Li> Jessica Williams (Dharma Brown in the pilot, Lucia Cunningham in the series)--Craig's younger sister who typically likes to keep everything in check by describing her actions out loud . She is very smart for her age and already shows an interest in the stock market . </Li>

Who plays craigs dad on craig of the creek