Romeo Robot Night Ninja Ninjalinos Luna Girl The moths
His friends (including Connor and Amaya) His pet Lionel Reptiles (especially Lizards) Flying (particularly in the Owl-Glider) Fighting crime PJ Robot His Gekko-mobile Kick McGee Outer space (currently)
Night Ninja and his Ninjalinos Romeo and his Robot Things going wrong His friends in danger His friends not listening to him by taking him seriously Luna Girl and her moths Sticky Splats Being captured Not using his Gekko-mobile (formerly) Losing his Gekko-mobile Catboy's fear of water Outer space (formerly)
Gekko, the youngest member of the team but he’s a strong and sticky master of camouflage! He’s ready to rush into danger and save the day with his super Gekko muscles. Always ready for action Gekko can scale walls and with his Gekko-mobile so can all the PJ Masks! It can even travel underwater... Watch out baddies, here comes the mighty Gekko!
Greg can sometimes be competitive when it comes to playing games, but he isn't very good at rhyming (as evidenced in "Speak UP, Gekko!"). When he isn't Gekko, his isn't as strong and that sometimes causes him to doubt himself. This is usually remedied by Connor and Amaya's encouragement. He's also nice, friendly, helpful, somewhat shy, fun, playful, and funny.
On occasion, Gekko pretends to be Kick McGee along with Catboy playing as Master Fang during missions. He sometimes displays insecurity, such as in Gekko's Super Gekko Sense when he made up a new power due to thinking that the powers he actually had would now help win the game. He can be easily distracted (which was emphasized in "Slowpoke Gekko"). Like his fellow teammates, childlike immaturity tends to overtake his mindset on the mission leading to issues (such as rejecting Owlette's desire to play along as Flossy Flash with them in "Catboy and Gekko's Robot Rampage"), but this is always realized and corrected leading to the mission being done properly, and the villain's plans foiled.
Greg has pale skin, green eyes and a blond parted hairstyle. During the daytime, Greg wears a light green sweatshirt with brown drawstrings and beige pants. In the nighttime, his pajamas consist of a pair of light green pants and a shirt featuring a lizard track pattern and his signature Gekko symbol. His pajamas also have a white trim.
As Gekko, he wears a green one-piece costume with frills and a tail to make him more lizard-like. His mask has an opening for his eyes and the lower portion of his face.
Abilities as Gekko
Super Gekko Muscles: Can be stronger and lift objects.
Super Lizard Grip: Can climb on walls and other surfaces.
Super Gekko Camoulflage: Can blend in the background.
Super Lizard Water Run: Can run on water.
Color-Changing: Can change colors of his costume.
Super Gekko Shield (first seen in "Wacky Floats", and officially introduced in "PJ Power Up"): Gives Gekko two shields attached to his arms, which he can use to block incoming attacks.