Lock, Shock, and Barrel

Lock, Shock, and Barrel are characters from the Kingdom Hearts universe. They are Oogie Boogie's costumed henchmen. They are a trio of children in Halloween garbs of a devil, witch, and skeleton, respectively.

Kingdom Hearts
''The ringleader of the trio that includes Shock and Barrel. Their walking bathtub helps them get around while they commit all kinds of mischief. They sometimes help Oogie, but they're not really fond of him.''
 * Lock

He created havoc in "Tim Burton's The Nightmare Before Christmas" (1993).

''Along with Lock and Barrel, she's part of Oogie Boogie's plot to take over Halloween Town. Shock is the most cunning member of the trio. She keeps her cool when the other two are losing it.''
 * Shock

She created havoc in "Tim Burton's The Nightmare Before Christmas" (1993).

''A member of the trio that includes Lock and Shock. He's a little slow, and often ends up as the butt of his partners' pranks and practical jokes.''
 * Barrel

He created havoc in "Tim Burton's The Nightmare Before Christmas" (1993).

Kingdom Hearts II
The Nightmare Before Christmas (1993)
 * Lock

''A member of the prankster trio that includes Shock and Barrel. Their walking bathtub helps them get around while they commit all kinds of mischief''.

They sometimes help Oogie, but they're not really loyal to him.

The Nightmare Before Christmas (1993)
 * Shock

''Another member of the trio of trouble makers. Shock is the most cunning of the three, and comes up with a lot of their ideas for mischief. Last time Oogie was defeated, she started behaving better -- well, just a little bit better.''

The Nightmare Before Christmas (1993)
 * Barrel

''A member of the trio that includes Lock and Shock. He's often the object of his partners' pranks and practical jokes.''

Kingdom Hearts 358/2 Days
''One of the three imps living in Halloween Town. Despite being the trio's apparent leader, he lacks real combat skill.'' ''Instead, he'll run about wildly while throwing pumpkin bombs from afar. Hit them back with a block to send him sprawling.''
 * Lock

''One of the three imps living in Halloween Town. She poses little threat in terms of strength, but will attack with a spinning charge.'' Stop that with a block, or hit her with one of Lock's pumpkin bombs to send her sprawling.
 * Shock

''One of the three imps living in Halloween Town. He poses little threat in terms of strength.'' ''Stop his rolling charge with a block and he will go flying. You can also hit him with one of Lock's pumpkin bombs to send him sprawling.''
 * Barrel

Kingdom Hearts
In Kingdom Hearts, they steal an artificial heart from Dr. Finkelstein to give to Oogie. They are soon captured, however, without the heart. After their battle, they reluctantly reveal tips on how to defeat Oogie. It is assumed they leave the mansion afterwards, since they are seen in Kingdom Hearts II.

Kingdom Hearts 358/2 Days
The mischevious trio appears again in Kingdom Hearts 358/2 Days, repeatedly playing a trick on Roxas. Usually, when Roxas is about to leave Halloween Town, the three will sneak up behind him and yell "Trick or Treat!" When Roxas turns around, they throw a pumpkin bomb at him, which explodes in his face, then run off laughing. Eventually fed up with this, Roxas dodges one of the pumpkin bombs, and engages in a fight with the trio.

Kingdom Hearts II
In Kingdom Hearts II, it is revealed that they became Dr. Finkelstein's assistants. When they go out to play, they come across Maleficent and tell her of Oogie Boogie's fate. Maleficent revives Oogie and gives them control of the Prison Keeper Heartless as a distraction for Sora and company.
 * First Visit

In the second visit, they are blamed for stealing Christmas presents from Santa. In the inevitable chase afterwards, the heroes discover the truth when they tell them about Dr. Finkelstein's Experiment.
 * Second Visit

Appearance
Lock is dressed as a devil, wearing a plain, long-sleeved, tattered red shirt, and pants of the same color. His brown shoes have pointed toes that curl upward, and he seems to wear pale orange gloves. His skin is an unhealthy grey color, his eyes are an eerie yellow and his lips are sky blue. His upper eyelids are a pink color, while the lower one is periwinkle. His chin is rather large and the top of his head is quite flat. His ears are set rather low on his head, and his eyebrows are the same shade of red as his clothes, while the rest of his hair is a darker red-brown color. He styles his hair in such a way that he has two "horns" in the front. His nose is pointed, but not nearly as large as Shock's. His mask is a faded red devil's face with horns that curve upward much more than Lock's hair. The mask's mouth is curled into a ghastly smile, showng sharp teeth. Lock's outfit is completed by a red, pointed tail, though it is unclear wether or not this is an accessory.
 * Lock

Shock, the only girl of the group, is the tallest, being only slightly taller than Lock, as well as the thinnest. She is dressed as a witch, wearing a purple witch's hat that is about the same height (perhaps even taller) than her. Her hair is wiry and blue, the same color as the makeup she wears around her eyes. She also seems wear sky blue lipstick (though both Barrel and Lock have lips of the same color, so this may be her normal lip color) and has deathly grey skin, the latter being a trait all three children share. Her face and neck are quite long and her nose is enormous and pointed, taking up most of her face. Shock's mask is a plain grey-green one that sports the same large nose as her own face, and its mouth is set in a deep frown. She wears a pink dress with a dark purple hem, as well as black boots and dark purple gloves.
 * Shock

Barrel is the shortest and most rotund of the trio, sporting the same pale grey skin and blue lips as his friends. His head is spherical and he has short, pale green hair. His nose is very small when compared to Lock and Shock's, and it is upturned. His eyes are quite close together and appear to be sunken in, though this could just be an illusion created by the dark makeup arund them. Barrel dresses up like a skeleton, wearing tattered purple pants and a like-colored shirt. Both of these pieces of clothing are decorated with bones roughly corresponding to their locations in the human body. Unlike his friends, Barrel doesn't seem to wear gloves, but his feet are oddly shaped, with three toes of the same length. It isn't clear if they are part of his costume or his real feet. His mask is that of a skull; a simple, round, white mask with the mouth being bare teeth set in a wide grin, reflecting the fact that Barrel himself is usually grinning.
 * Barrel

Trivia

 * Strangely, the hands of the children appear to be different color than their skin under their masks. Whether or not they are wearing gloves is unknown.

Am, Stram et Gram