Slappy the Dummy (voiced by Jack Black, performed by Avery Jones) is the main antagonist of the 2015 movie Goosebumps. Slappy is a fictional character from R.L. Stine's book "Night of the Living Dummy." When Slappy was accidentally released from his manuscript, Slappy sought revenge on Stine for locking him up along with the other Goosebumps monsters Stine created.
- Slappy will become Jeffrey and Jaden's enemy in Jeffrey, Jaden & Friends' Storm Adventures of Goosebumps.
- Slappy will return in Jeffrey, Jaden & Friends' Storm Adventures of Super Mario Galaxy.
- Slappy is a member of The Legion of Darkness.