Meltman, also known by his birth name Barry Meltfarb, is a main protagonist on the live-action/stop motion segment Action League Now! seen on Nickelodeon's All That, and KaBlam!.
He is considered to be the weakest character of the League with only the ability to melt, but occasionally saves them from when they get into trouble. Thundergirl is his crush, but she usually ignores it.
Trivia
Meltman was created from a modified and melted G.I. Joe Cobra Commander figure.
Scott Paulsen, who portrayed the character, also voiced the narrator.