Ghostbusters Cameos are of clearly referenced moments when another universe uses the Ghostbusters mythos or props. The prop cameo section on the other hand uses props also used in the Ghostbusters movies in a non-Ghostbusters canon manner. This page doesn't include Tributes, Spoofs, and References.
A concerted effort has been made to present the information in chronological order. Dates come from the Internet Movie Database and are assumed to be correct.
All data that has been verified will include images and/or a video clip link. If you wish to add a reference to this article, please provide an image or video (cued up to the reference, or with a timestamp notation) to back it up. An image uploaded to the Wiki is preferred due to the likelihood of video takedowns (especially on YouTube). Any reference without an image or video to verify may be removed from this article in the future. Items in need of an image, video, or some kind of reference have the "Citation Needed" notation.
Ghostbusters Movie/TV Footage
- The Muppet Babies animated series used footage from Ghostbusters in several episodes.
- "Good, Clean Fun" (December 8, 1984) (Season 1) - Footage of the Stay Puft Marshmallow Man mixed in with the story's Piggy Dough Girl. (Watch Video Clip)
- "I Want My Muppet TV!" (October 26, 1985, Season 2) - Bunsen invented a suit to help kids sleep better with a parachute (in case they fell out of bed) and a proton pack-like laser gun (to chase away bad dreams). This second device involved footage from the movie of Slimer retreating from his close encounter with Ray. (Watch Video Clip)
- "Bug-Busting Babies" (December 3, 1988) (Season 5) - The babies imagined themselves entering Scooter's computer to hunt down a computer bug. Footage of Dana Barret's apartment building from the climax of the movie was also used in this episode. 
- The What NOW Caper (1989) - A pseudo-documentary produced and sold by NOW Comics in 1989 showing how comic books are made. The Real Ghostbusters "appear" though the brief use of clips from their television series.
- Hero (1992) - A clip from Ghostbusters is shown in this Columbia Pictures film. Thirty-one minutes into the film, we see Joey (James Madio) watching the Sedgewick Hotel ballroom scene on a small portable TV, as his father Bernie (Dustin Hoffman) visits his mother Evelyn (Joan Cusack) downstairs. (Watch Video Clip)
- Taco Bell commercial (1999) - Ricardo Montalban spies upon a family who's enjoying a Taco Bell meal while watching a tape they rented from Blockbuster Video. The video, of course, is Ghostbusters. Not so coincidentally, this commercial aired around the same time that Ghostbusters was first released onto DVD. At the end, the famous Taco Bell Chihuahua (voiced by Carlos Alazraqui) utters a cute quip: "Wow. Let's make S'mores". (Watch Video Clip)
- The Goldbergs (2013) - This sitcom, set in the 1980s, has featured some footage from the movies and animated series, as noted on The Goldbergs Series page.
- The Earth Day Special (1990) - Harold Ramis made an appearance as "Elon Spengler", supposedly Egon Spengler's twin brother and President of Wastebusters.
- Zombieland (2009) - Guest part by Bill Murray as himself. He does wear a proton pack like device in the film.
- Target "Target Ticket" TV Commercial (2014) - This television commercial for the store's new digital entertainment service features many movie characters (all in red), including a cameo by the Stay Puft Marshmallow Man. (Watch Video Clip)
- Radio Shack "The Phone Call" TV Commercial (2014) - An extended version of this Super Bowl ad has a cameo appearance of Slimer. The model of Slimer was made by Tyler Ham for Tom Spina Designs. 
- AT&T "Everywhere" TV Commercial (December 26, 2016) - The Stay Puft Marshmallow Man appeared at the end of this minute-long ad promoting the "Data Free TV" campaign. The commercial's main character flew past Stay Puft in the DeLorean from the "Back to the Future" franchise. An instrumental of part of the "Ghostbusters" theme song also played during the cameo. (Watch Video Clip)
Transformers over the years has had some cameos with characters that either use the same designs as in-universe counterparts or shares traits.
- Susan Hoffman hires characters that look like; Egon Spengler, Ray Stantz, and Peter Venkman to capture Starscream's Ghost. 
- Dead Transformers do have the ability to enter an afterlife. A list of ghosts that appear in the Transformers Universe is available here.
It's worth noting that The Real Ghostbusters had a comic, The Real Ghostbusters Series, being published by Marvel Comics Ltd at the time "Race with the Devil" was printed in Transformers, so the appearances of Hoffman's assistants may have been an in-joke by artist Andrew Wildman, who worked on both books.
The Ghostbusters movie props were actually rented out props which were used in other films/television shows. None of these films/television shows actually use the props based on Ghostbusters canon.
- The Condor (1986) - uses the PKE Meter.
- They Live (1988) - uses the PKE Meter.
- Operation Blue Line, Starring: Teenage Mutant Ninja Turtles (1990) - uses the Giga meter.
- Suburban Commando (1991) - uses the PKE Meter.
- Breaking In: "Who's The Boss" (March 13, 2012, Season 2) - The Proton Pack prop appears as itself (it's a Sony production so they probably took one of their props out from storage), Ghostbusters is used to deceive the naive new office worker into thinking a job is more dangerous than it really is, and at the end the Ghostbusters DVD is presented to her. For some reason, instead of a real Ghostbusters DVD being used, a prop DVD was made. It has the "logo on blue slime background" front cover of the 2009 Blu-ray release, and the picture spine and back cover of the 1999 DVD release. Also, the "Adam F. Goldberg Productions" production card seen after the credits features a photo of young Adam wearing a Ghostbusters shirt while playing with a bunch of toys. Adam would later go on to create the 2013 TV series The Goldbergs, which contained many Ghostbusters references (and even re-used this production card for one episode), as noted on The Goldbergs Series page. (Watch Video Clip)
Merchandise, such as shirts or toys sometimes make cameos in media. Usually it is not noted that its Ghostbusters related, which then suggests its a cameo instead.
- The Legend of Billie Jean (1985) - As Mr. Pyatt (Richard Bradford) and Lieutenant Larry Ringwald (Peter Coyote) are talking in the shopping mall, a pair of No-Ghost Sign mylar balloons can be seen in the background.
- Child's Play (1988) - Just after the explosion in the toy store at the beginning of the movie, a lone Kenner Ecto-1 box can be seen in the background on the shelf as Detective Norris (Chris Sarandon) stumbles around looking for Charles Lee Ray (Brad Dourif).
- The Witches (1990) - the main character Luke plays with his pet mouse with a Bad-To-The-Bone. Later, Luke himself was turned into a mouse by the evil witches and briefly resides in the Real Ghostbusters firehouse playset by Kenner towards the end of the movie. (Watch Video Clip)
- Kindergarten Cop (1990) - The child Dominic has The Real Ghostbusters bed sheet set. Later, when Dominic shows off his hideout, you can see a Kenner Real Ghostbusters Proton Gun hanging in a tree. (Watch Video Clip)
- RoboCop 2 (1990) - Robocop deals with a crooked cop in an arcade full of Data East machines (they made the Robocop video game, so this is obvious product placement). At the end of the scene, Robocop tosses the cop across the room, and he lands right in front of The Real Ghostbusters arcade game. This appears approximately 30 minutes into the film. 
- Silent Night, Deadly Night 5: The Toy Maker (1991) - The Ecto-1 Kenner toy makes two cameos. Noah (played by Tracy Fraim) is disassembling the toy while in his motel room before the manager confronts him. The second cameo is at the end when Pino is stabbing the Christmas bags trying to kill Sarah's son.
- The Goldbergs (2013) - This television series features many usages of Ghostbusters merchandise, as noted on The Goldbergs Series page.
Commonly Mistaken as a Cameo: Ernie Hudson in Slime Busters
- On an episode of the The Super Mario Bros. Super Show!: Slime Busters, Ernie Hudson has a guest role as a Ghostbuster version of himself. Using cheap props and special effects, he rescues the plumbers from a ghost-possessed Luigi. While this is not a Cameo for Ghostbusters, it is confused quite often because of the use of actor Ernie Hudson.
- TFWiki.net: the Transformers Wiki, which provided much of the information for the Transformers Universe section.