Thanks to Geordi La Forge, the Ghostbusters' Ghost Trap is canon in the Star Trek universe. The worlds of Star Trek and Ghostbusters may seem like an unlikely pairing, but in the Star Trek: The Next Generation special Embrace the Wolf, Geordi must rig a trap to ensnare a non-corporeal being – and the trap bears more than a passing resemblance to the traps used by the Ghostbusters.
The two franchises make an unlikely pair due to competing worldviews: Ghostbusters firmly believes in the supernatural – ghosts and demons are everyday occurrences in its world. Star Trek, on the other hand, eschews such concepts, preferring a world that functions within established scientific principles. This has not stopped Star Trek from featuring beings and species that could, to the uninitiated, appear to be ghosts. One such being was Redjac, a malevolent, non-corporeal life form who traveled the cosmos brutally murdering women; Redjac had been responsible for several infamous crime sprees, including the historic serial killer Jack the Ripper. Redjac appeared in the second season episode “A Wolf in the Fold.” Captain Kirk and the crew of the Enterprise encountered Redjac in deep space, and were able to vanquish it. Yet in 2000's Star Trek: The Next Generation: Embrace the Wolf, first published by Wildstorm, the evil entity returns to menace a new Enterprise and a new crew.
