Blue Devil

Blue Devil
Promotional art for Shadowpact #4. Art by Steve Scott.
Publication information
Publisher	DC Comics
First appearance	Fury of Firestorm #24 (June 1984)
Created by	Dan Mishkin (character) Gary Cohn (character and visual) Paris Cullins (belt design)
In-story information
Full name	Daniel Patrick Cassidy
Team affiliations	Shadowpact Justice League Sentinels of Magic
Abilities	Superhuman strength, durability, vision, and hearing Healing factor Can find demons on Earth and banish them to Hell Highly trained martial artist and acrobat

Blue Devil
Blue Devil
	Blue Devil #1 (June 1984), cover art by Paris Cullins.
Series publication information
Publisher	DC Comics
Schedule	monthly
Format	Ongoing series
Genre	Superhero
Publication date	June 1984 – Dec. 1986
Number of issues	31 issues & 1 annual
Main character(s)	Daniel Patrick Cassidy

Blue Devil (Dan Cassidy) is a fictional character, a superhero featured in material published by DC Comics. He first appeared in a special insert published in Fury of Firestorm #24 (June 1984). That story led directly into Blue Devil #1, also cover dated June 1984. He was created by Dan Mishkin, Gary Cohn, and Paris Cullins. The Blue Devil comic book ran for 32 issues with Blue Devil later appearing as a regular character in Shadowpact that ran for 25 issues.

Dan Cassidy was working as a Stuntman and special effects specialist in Hollywood when he created the Blue Devil full body suit, complete with a built in exoskeleton, specifically designed for the Blue Devil movie being produced by Verner Brothers Studios.

During filming on île du Diable, the demon Nebiros was accidentally unleashed from within an ancient temple and, thinking Cassidy was an actual demon, tried to drain his demonic powers with blasts of magic. Instead, the blasts permanently bonded the suit to Cassidy. This unnatural fusion of magic and technology caused Cassidy to experience unusual events and draw the attention of otherworldly beings, a condition known in occult circles as a "weirdness magnet".

Horrified at the prospect of being stuck in the suit forever, Cassidy sought out ways to separate himself from it, becoming a reluctant super hero along the way.

Cassidy was eventually transformed into an actual demon after making a deal with the demon Neron. Regretting the deal, Blue Devil decided to fight occult evil, often alongside the other members of Shadowpact.

Cassidy's original trident was a mechanical device that he designed himself but, after being turned into an actual demon, he acquired the magical "Trident of Lucifer" to help combat demons. Blue Devil appeared in episodes of the Justice League Unlimited cartoon as well as a brief appearance in the Young Justice show.