Slimer

Slimer
Ghostbusters character
Slimer, as he appeared in the film Ghostbusters (1984) and its sequel Ghostbusters: Frozen Empire (2024), made from the authentic molds for the making of the costumes of the films and displayed at the character's co-creator Steve Johnson's Brick and Mortar Productions Studios.
First appearanceGhostbusters (1984)
Created by
Voiced by
In-universe information
SpeciesGhost
Title
  • Focused, Non-Terminal Repeating Phantasm
  • Class 5 Full Roaming Vapor
SpouseLady Slimer (2016 Remake)

Slimer, originally referred to as "Onionhead" and sometimes "the Mean Green Ghost" and "Ugly Little Spud", is a character from the Ghostbusters franchise. He appears in the films Ghostbusters (1984), Ghostbusters II (1989), the remake Ghostbusters (2016), and Ghostbusters: Frozen Empire (2024), in the animated television series: The Real Ghostbusters, Slimer! and Extreme Ghostbusters, and in the video games: Ghostbusters: The Video Game (2009), Beeline's Ghostbusters (2013), Ghostbusters: Spirits Unleashed (2022) and Ghostbusters: Rise of the Ghost Lord (2024). Slimer was voiced by Ivan Reitman and Adam Ray in the films and by Frank Welker in the animated series. In The Real Ghostbusters, he is the Ghostbusters' mascot and friend (unlike the films, where he is a ghost who needs to be busted).

Ghostbusters: Afterlife (2021) instead features a similar ghost named "Muncher".