Slappy the Dummy (2015 film)

'''"Who are you calling dummy, dummy?"

- Slappy's catchphrase '''

Slappy the Dummy is the main antagonist of the 2015 film adaptation Goosebumps, based on the book series of the same name. He is one of the monsters to be accidentally released from one of R. L. Stine's manuscripts, and proceeds to release the other monsters from their books, wreaking havoc on the town as a result.

He is voiced by Jack Black (who also portrayed R. L. Stine) and puppeteered by Avery Jones.

Biography
In a reimagining of Stine's past, he originated as an outcast, bullied by his peers. To seek solace, Stine imagined a series of monsters and demons to take revenge on his tormentors. Stine's demons ultimately became a reality, as all the monsters he had ever imagined were created, among them Slappy the Dummy. Slappy was Stine's best friend originally, but Stine ultimately realized that the monsters were too dangerous to society and trapped each of them in his manuscripts, where they remained for years. While trapped, Slappy became disillusioned with Stine and grew an intense hatred to the man for his "betrayal".

Trivia

 * Slappy represents R. L. Stine's dark side.