- "Hello there, my lovely video-tapeworms. Looking for a scary good time tonight, huh? A little romp in the dark, perhaps? Well, you've come to the right place! That is, if you're not looking to end up as a permanent fixture in this black-and-white hellhole I've been calling home lately."
- — Elvira
Cassandra Peterson, better known as Elvira, is a character featured in the Call of Duty: Infinite Warfare Zombies map Attack of the Radioactive Thing. She is a secret unlockable character just like David Hasselhoff from Zombies in Spaceland, Kevin Smith from Rave in the Redwoods, and Pam Grier from Shaolin Shuffle.
At some point in time, Willard Wyler offered Elvira a role in one of his films. What she didn't know was that he was speaking literally. Ever since, she has been trapped in Attack of the Radioactive Thing, serving as hostess for the movie.
In the map, she is an ally to Andre Wright, Aaron "A.J." Jordaniels, Sally Simpson and Poindexter Zittermann, helping them gain access to the Pack-a-Punch Machine using her spell book, as well as taking the role of Demonic Announcer away from Willard Wyler. She will announce whenever the player obtains a power-up, and bring color to the film once a certain portion of the map is opened, both of which give her a scolding from Wyler.
After completing the main easter egg, the player can enter the following code in the pre-game lobby: Down, Right, Down, Left, Up, Right.
- Sometimes, when Elvira announces a power-up, Willard Wyler will threaten to send her to Nightfall, an Extinction map.