Pain and Panic

Pain and panic are one of the 11 antagonists of Hercules, the others being The Fates, Hades, and The Titans. They are the servants of Hades, though they seem to be more willing to work against him rather than with him, as seen when they both buy Hercules merchandise. Panic commonly says "He's not gonna be happy" when he gets out of a certain situation, when Pain retaliates by saying "You mean, if he gets out of there." and Panic agrees by saying "If. If is good." and then take advantage of the situation by doing as much as possible before he escapes.

Background
Not much is known about Pain and Panic's background, but one can infer that they were loyal to Hades' before the events of the movie.

Abilities
Shapeshifting

Pain and Panic both have the ability to morph into different animals, shapes, and objects. However, they are limited to the ability to the form they take, such as a snake. They cannot grab anything due to not having arms, and are slower than most humans.

Flight

Both also have the ability to fly, based upon their miniature wings. However, they had to work together to lift Hercules as an infant, implying that they have a load-bearing limit.

Endurance

They also have quite a bit of endurance, being able to be squeezed by the neck, and be burned by Hades' fire.