Tapeman

The Tape Man is a type of tape-recorded used in Gravity Falls.

History
It is first seen in "Double Dipper," when Stan used it to secretly record Dipper’s promise to him and use it as a way to make Dipper keep it.

The Tape Man makes another appearance in "Boyz Crazy." After Dipper figures out how Robbie’s song is able to control Wendy he uses it to record the hidden message in the song. Later in the episode uses the tape recorder to show Wendy the real message behind the song; after she shuns him for it he looks at the Tape Man and regrets what he has done.

Appearance
The Tape Man has the look of an ordinary tape recorder except that it has TAPEMAN written in white in the center.