Sidekick

A sidekick is a person's partner or right hand man. Many superheroes and supervillains have sidekicks.

List of sidekicks

 * Robin (Batman's sidekick)
 * Aqualad (Aquaman's sidekick)
 * Wonder Girl (Wonder Woman's sidekick)
 * Speedy (Green Arrow's sidekick)
 * Plinky (Lex Luthor's sidekick)
 * Jessica Morganberry (Lex's sidekick during the late '80s)