The PJ Masks are vigilante counterparts of Les Pyjamasques and the primary trio of their own television series. They are the superheroes of the city and are known for stopping villains during the night time, although on each mission, their personality issues usually get in the way. However, they quickly realize and learn from their behaviors to personally better themselves. These lessons serve to teach the viewers about the values of life.
The PJ Masks consist of:
Catboy (Connor): A cat-like kid with super-speed and great hearing abilities. He is the leader of the trio and drives the Cat Car. His suit is blue in color and has ears and a tail.
Owlette (Amaya): An owl-like girl with flying abilities and a special ability to see things from far away using her owl eyes. She is the only female member of the group and flies the Owl-Glider. Her suit is red and has an owl mask with feathered wings on her back.
Gekko (Greg): A lizard-like boy with super-strength, the ability to climb walls and ceilings, and the ability to color-change and camouflage. He is the youngest of the trio and drives the Gekko-mobile. His suit is green in color and has reptilian features.
Armadylan (Dylan): An armadillo-like boy also with super-strength, ability to create strong earthquakes. He can also dig underground and roll himself up into a ball. He is stronger than Gekko and wears armor in tan-and-brown color with a tail-cape.
Armadylan's true identity is currently unknown.
Armadylan is the only member to wear helmet and armor, instead of jumpsuit and mask.
In "PJ Dylan", Armadylan actually becomes a new PJ Mask member.
It is unknown if the PJ Masks have had any members other than the current trio.
Their catchphrase, usually said by either Connor, Greg, or Amaya, is "PJ Masks, we're on our way. Into the night, to save the day!"
It is possible that when they switch at nighttime, they start thinking more like animals. They are able to trot on all four legs like an animal would, have catchphrases (and insults thrown at them) that relate to the animal they're based off of, and are able to get into poses that the animal they're based off of would be able to.
The only PJ Mask shown in the current trio that does not have a tail is Owlette and this can be seen if one looks at her poses thoroughly.
According to a YouTube video from the official PJ Masks channel, the PJ Masks are all 6 years old (the description reads "Six year olds Connor, Amaya, and Greg", thus confirming the PJ Masks' age). The villains' ages are currently unknown, but they could be the around that age as well.
Instead with regards to Armadylan, the age may be different like 8/9 years old and he is the highest of all
Whenever their powers are activated their suits will glow a lighter color of their signature colors. They also usually call out the names of their powers upon activating them, but not always.
Unlike Les Pyjamasques' playful acrobatic routine when off-duty, the PJ Masks will instead take their time off-duty such as practicing their hero moves near HQ or taking their vehicles for a ride.
The PJ Masks will also choose to act casual and blend in from the public such as hiding or disguising their voices so that no-one will know who they're really are, while Les Pyjamasques are not interested on blending in nor acting casual. This was emphasized in "Moonfizzle Balls" and "Halloween Tricksters", this is a reference to how the DC superheroes keep their secret identities hidden.