All the Five Nights At Freddys Characters

Jack-O-Chica

Jack-O-Chica is a Halloween-themed reskinned variant of Nightmare Chica. She first appeared in Five Nights at Freddy's 4, where she replaces her original counterpart for the Halloween Edition.

Physical Appearance

The first notable difference is her color designs being completely orange in Halloween-style. Her skin color is dark golden rather than yellow. In place of her normal endoskeleton eyes, the eye sockets are quite brightly glowing orange, much like a jack o'lantern. A similar effect appears to have been applied to Jack-O-Chica's overall body, as it can be seen very prevalently around her shoulder sockets and tears from her stomach. Her endoskeleton head is entirely absent while her endoskeleton teeth remain, note that Jack-O-Chica does not have the third row of teeth present in it's nightmare counterpart. If one looks closely, they can see that her endoskeleton chest is also absent. Few glowing yellow tints can be seen from her teeth and mouth, allowing her endoskeleton jaw to glow in a little bit dimmed light. The only other noticeable difference is that Jack-O-Chica's feet and lower legs are slightly darker in color than that of Nightmare Chica's. The color of her beak is also darker. A texture for Jack-O-Chica's suit is slightly smoother with a lack of nearly-visible scratches, unlike Nightmare Chica. Her bib is the only feature that remains unchanged.

Jack o'lantern

A large green Jack o'lantern serves as a replacement for Nightmare Chica's cupcake. Interestingly, her Jack o'lantern is nearly identical to the actual pumpkin from the Five Nights at Freddy's 3 Halloween update where it can be seen on The Office desk. It has triangular eye-sockets with round eyes emitting a white glow and a nose like that of a stereotypical Jack-o'lantern, as well as a typical zig-zag mouth and an orange glow emitted from the inside.

Personality

Based on her quotes from Ultimate Custom Night, Jack-O-Chica is cold-hearted and ruthless. She is also shown to have a vengeful, yet mocking disposition. Her voice is low-pitched and edited with television-like static noises.

Appearances

Five Nights at Freddy's 4: Jack-O-Chica's behavior is almost exactly like her original variant. Interestingly, bright shining colors from within her body and head causes her to glow in the dark which can be seen while she's retreating from the Right Hall. The same effect goes to Jack-O-Bonnie.

While not counting her animation as she retreats from the Right Hall, the only difference about her jumpscare animation is the speed being slightly faster than her original variant, similar to Jack O Bonnie's own jumpscare animation speed. Her Jack o'lantern also shares the same speed limit as Nightmare Chica's cupcake while jumpscaring the player from the Bedroom and it seems to bounce on the floor few times before the "Game Over" screen displays.

Ultimate Custom Night: 

"When the office Heats Up, she will appear in both halls at the same time. Close both doors to make her vanish. This won't work if the office is 100 degrees or more."
— Menu description,

Jack-O-Chica attacking the player, animated.

Jack-O-Chica returns in Ultimate Custom Night as one of the many selectable characters.

For Jack-O-Chica, she appears at both left and right doors at the same time. Closing either door by itself will have no effect on her. Check the cameras and view the hallways on either side, when Jack-O-Chica is fully materialized at both doors, close both doors simultaneously to cause her to disappear. Keeping the office cool will prevent her from appearing. Jack-O-Chica only begins to appear when the office overheats. Once the office is 100 degrees or more, the doors won't stop her from entering and jumpscaring the player.

The challenges in which Jack-O-Chica is present are as follows:

-Ladies Night 1

-Ladies Night 2

-Ladies Night 3

-Nightmares Attack

-Chaos 1

Voice Lines for Jack-O-Chica:

-"I am a burning reminder of your misdeeds,"

-"Did things get really hot in here or is it just me,"

-"Come and Burn with me,"

-The fire within me burns eternal and now you shall as well,"

-"Greetings from the fire, and for the one you shouldn't have killed,"