Keymaster is the twentieth Chapter on the DVDs of Ghostbusters. In this Chapter Egon meets Vinz Clortho.
- Louis Tully (possessed by Vinz Clortho)
- Police Sergeant
- Janine Melnitz
- Egon Spengler
- Dana Barrett (possessed by Zuul)
- Peter Venkman
- Winston Zeddemore
- Ray Stantz
- On page 16 of Ghostbusters Annual 2015, Peter's dream reality is a recreation of a scene from Chapter 20 "Keymaster" when Peter talks to Egon on the phone.
- Ray takes the place of the Zuul-possessed Dana Barrett.
- On the Subscription Cover of Ghostbusters 101 #5, near Janine has an "84" is on her jacket, a nod to the year of the first movie. The pose of her embrace with Egon is a nod to when Janine tells him her premonition of his death.
- On page 1 of Ghostbusters: Interdimensional Cross-Rip, the pack of cigarettes and devices are from Chapter 20.
|Peter: I have some news from the world of Gozer.|
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|Chapter 19: Peter's Date with Zuul||Chapter 21: Out of Biz|