He is a light blue fish with a bluish-white underside, four faded blue spots under his mouth, and a faded blue dorsal fin. He wears light brown pants with a black belt that has a yellow-gold colored belt buckle. In his older appearances, he had three spots under his mouth instead of four, his pants covered his feet, and his pants had a visible fly on them.
Incidental 67 makes more minor and non-speaking roles than notable ones, there are only a few episodes where he speaks. He also has a "KID" suffix variant that often appears as a child in many episodes. He was firstly designed to be a Krusty Krab customer.
He spots SpongeBob through the Krusty Krab window when Incidental 70 states that he is back. He is also seen watching SpongeBob and Bubble Bass' show off alongside Incidental 6 and Billy.
He is seen as one of the customers running and panicking in the Krusty Krab after Mr. Krabs tells SpongeBob he doesn't want him sneezing all over his food.
Incidental 67KID appears as one of Mr. Krabs' and Plankton's past bullies. He is also seen shoving Billy out of the way while he tries to order a Stinky Burger. He later calls Krabs' and Plankton's argument a "nerd fight" and is also seen cheering for Mr. Krabs because his Krabby Patties have become a success.
He is seen as Incidental 67KID building a sandcastle at Goo Lagoon with Big Johnny, where they become amazed after Larry the Lobster lights it on fire.
Incidental 67KID appears as one of Incidental 6's wild kids at the Krusty Krab where they laugh after SpongeBob mimics Incidental 6. Incidental 6 laughs as well, then angrily tells his kids to eat their patties to which they do so in fear.
He is seen talking to Incidental 42 where they get interrupted by Patrick acting defensive of his coupon. A second Incidental 67 also appears as one of the people surrounding Patrick when he becomes over defensive of his coupon.
He faints into the arms of Incidental FG6 when he sees the Flying Dutchman possess Plankton's body. He shortly regains consciousness and angrily shouts out "He's alive?!"
He, Incidental 41, Incidental 81, and Male cowfish performs music, as Incidental 67 himself plays on a cello during SpongeBob and Gary's western standoff.
He robs Granny Tentacles and steals her purse. Super Patrick fights him off and crushes him with a cannonball to return the purse. When the crowd protests against the Super Stars, Incidental 6 defends him by claiming he stole the purse fairly.
He is seen drinking a cup of juice until SpongeBob accidentally spills it. This causes him to cry and SpongeBob uses his toe to absorb his tears. He then gets the idea to absorb Incidental 67KID's juice from the ground and pour it back into his cup.
