Real Name: Daniel Cassidy
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Even before he became Blue Devil, Dan Cassidy was a highly trained martial artist and acrobat. His costume included Kevlar body armor, visual and auditory amplifiers, radio gear, and servo-motors which increased his strength at least twenty-fold. After being grafted to Cassidy's body the costume became organic and gained the ability to self-repair at an extremely fast rate (effectively a healing factor). Cassidy's abilities seem to have been changed little by his transformation into an actual demon.
Originally, Blue Devil wielded a trident of his own design which included, among other things, rocket engines capable of carrying two people at speeds of up to 60 miles per hour. He now carries the Trident of Lucifer, which allows him to find demons on Earth and banish them to Hell.
Standard Demon weaknesses, i.e. Holy Water, Hallowed Ground
Dan Cassidy was a special effects wizard and stuntman hired to create and play the title character in the movie Blue Devil. To that end Cassidy created a full-body costume with a hidden powered exoskeleton and built-in special-effects devices. When two of his co-stars accidentally freed a demon named Nebiros, Cassidy used his costume to drive the demon back, but not before being blasted with mystical energy. After the fight, Cassidy found that the blast had permanently grafted the Blue Devil costume to his body.
Cassidy quickly found himself embroiled in repeated adventures and conflicts with supervillains. Apparently, the blast that fused him with his costume had also turned him into a sort of "weirdness magnet". Although he continued to seek a way to regain a normal life, Cassidy became more comfortable as a superhero over time and eventually joined the Justice League of America.
When the demon Neron took control of Hell and began seeking souls on Earth, Blue Devil was one of those he approached. Neron offered him a chance to be a movie star, but neglected to mention that the bargain would also result in the death of one of Cassidy's closest friends. In the end, Cassidy cheated Neron of his prize but died in the process. Cassidy was soon reincarnated as an actual demon. Now, instead of a man in a costume, he was an actual Blue Devil.
Cassidy rejoined the Justice League and remained with them until his second death, this time at the hands of the villainous Mist. His bones were secretly recovered by the magician Faust, who eventually restored Blue Devil to have him destroy Nebiros. Cassidy then joined the Sentinels of Magic and eventually gave his life a third time fighting Hermes Trismegistus. He did not remain dead long, however, and roamed the Earth for a time banishing demons back to Hell.
Created by Dan Mishkin, Gary Cohn and Paris Cullins.
First Appearance: The Fury of Firestorm (1982) #24
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View a chronological listing of this character's appearances
Action Comics (1938)
Armageddon 2001 (1991)
#4 Blackest Night (2009)
- 'The Brave...and the Bold'
Blackest Night: Rise of the Black Lanterns (2010)
HC Blue Devil (1984)
- 'Blackest Night: Rise of the Black Lanterns'TPB
- 'Blackest Night: Rise of the Black Lanterns'
Booster Gold (1986)
#10 Catwoman (2002)
- 'Death Grip of the 1000'
TPB vol. 08 Checkmate (2006)
- 'Crime Pays'#77
- 'Waking Up On the Wrong Side of the Universe, Part Three'
TPB vol. 02 Countdown (2007)
- 'Pawn Breaks'#9
- 'Pawn 502, Part 2'#10
- 'Pawn 502, Part 3'#23
- 'Castling, Part One'
Countdown to Mystery (2007)
TPB Crisis on Infinite Earths (1985)
- 'Dr. Fate: Countdown To Mystery'#1
#4 Day of Judgment (1999)
- 'And Thus Shall the World DIE!'#5
- 'Worlds In Limbo'#8
- 'A Flash Of The Lightning!'#10
- 'Death at the Dawn of Time'#12
- 'Final Crisis'
TPB Day of Judgment Secret Files (1999)
- 'Day of Judgment'#4
- 'The End of the World as We Know It'#5
- 'Soul Search'
Day of Vengeance (2005)
DC Challenge (1985)
#11 DC Comics Presents (1978)
- 'How Can You be in Two Places at Once When You're Not Anywhere at All?'
DC Comics Presents: Captain Atom (2012)
DC Comics Presents: JLA - Black Baptism (2011)
DC Comics Presents: Supergirl/Superman (2012)
DC Infinite Halloween Special (2007)
#1 DC Sampler (1983)
- 'The 13 Stories of Halloween'
DC Universe Online: Legends (2011)
DC Universe: Decisions (2008)
#3 DC Universe: Origins (2009)
- 'Chapter Three: Time To Take A Stand!'
TPB DCU Infinite Holiday Special (2007)
- 'DC Universe: Origins'
DCU: Legacies (2010)
Detective Comics (1937)
HC Eclipso: The Darkness Within (1992)
- 'Private Casebook'TPB
- 'Private Casebook'#845
- 'The Riddle Unanswered'
#2 Elvira's House of Mystery (1986)
- 'Eclipso: The Darkness Within, The Conclusion: Brilliant Men'
Final Crisis (2008)
Absolute Edition Green Lantern (1990)
- 'Absolute Final Crisis'HC
- 'Final Crisis'TPB
- 'Final Crisis'#3
- 'Know Evil'#5
- 'Into Oblivion'#6
- 'How To Murder The Earth'#7
- 'New Heaven, New Earth'
#13 Guy Gardner: Warrior (1994)
- 'This Is the Way the World Ends!'
#29 Hawkman (1993)
- 'It's My Party And I'll Fight If I Want To'#32
- 'The Way of the Warrior, Part 1: Give Me a Space to Call My Own'#33
- 'The Way of the Warrior, Part 4: Into the Valley of Death'#34
- 'The Way of the Warrior, Part 7: Deathrock: Justice is Coming'
#22 History of the DC Universe (1986)
- 'The Way of the Warrior, Part 3: Storm Over Thanagar'
Infinite Crisis (2005)
#68 JLA - Die neue Gerechtigkeitsliga Sonderband (1997)
- 'Stillborn Atlantis'
#8 JLA in Crisis Secret Files (1998)
- 'Aus den geheimen Archiven 2'
JLA: Black Baptism (2001)
#1 JLA: Welcome to the Working Week (2003)
- 'Trails in Darkness'#3
- 'Sins of the Father'#4
- 'Final Sacrament'
#33 Justice League America (1989)
- 'Stealing Thunder, Part 1: Wish Fulfillment'
#97 Justice League of America (2006)
- 'A Burning Coal'#98
- 'The Silent Place'#99
- 'One Devil Two Devil'#100
- 'Opening Up the Game'#101
- 'The Way of the Warrior, Part 2: Pressure Cooker'#102
- 'The Way of the Warrior, Part 5: Breakout! '#103
- 'Oh, To Be Nobody'#105
- 'Killer Elite'#107
- 'The Devil's Due...'#108
- 'One Hand in Darkness...'#109
- 'All That Yazz'#110
- 'New Devils for Old'#111
- 'The Purge, Part 1: Now it's Time...'#112
- 'The Purge, Part 2: To Say Goodbye'#113
- 'The Purge, Part 3: To All Our Company'
Justice Society of America (2007)
#38 Last Days of the Justice Society Special (1986)
- 'Sympathy for the Fuhrer'#46
- 'Supertown: Part Three'#47
- 'Supertown: Part Four'#49
- 'Supertown: Conclusion'#50#51
- 'The Secret History of Monument Point Chapter One: Weird Worlds'#53
- 'The Secret History Of Monument Point Chapter Three: Strange Adventures'#54
- 'The Secret History of Monument Point Chapter Four: Crisis'
Special MAD (1952)
- 'The Last Days Of The Justice Society'
Martian Manhunter (1998)
Nightmaster: Monsters of Rock (2011)
Ragman: Suit of Souls (2010)
Reign in Hell (2008)
#144 Secret Origins (1986)
- 'Days of Fire and Madness'#145
- 'Too Many Villains!'
#24 Shadowpact (2006)
- 'Starring Dr. Fate & Blue Devil'
TPB vol. 01 Showcase '93 (1993)
- 'The Pentacle Plot'#1
- 'Death in a Small Town'#2
- 'The (Short) Year of Living Dangerously'#4
- 'Blue Devil: A Night in the Life'#5
- 'One Year Later'#6
- 'The Wild Hunt'#7
- 'The Laws of Battle'#8
- 'Three Laws Safe, Part One of the Demon Triptych'#10
- 'Cursed, Part Two of the Demon Triptych'#11
- 'The Lucifer Trident, Part Three of the Demon Tryptich'#12
- 'Live by the Sword, Die by the Sword'#13
- 'Bad Tidings & Evil Deeds'#14
- 'The Redemption Contract, Part One: Quitter!'#15
- 'The Nights Chicago Died, Part Two of the Redemption Contract'#16
- 'Down in the Zero: Part Three of the Redemption Contract'#17
- 'Darkness and Light Part 1: Proteges'#18
- 'Darkness and Light Part 2: Separations'#20
- 'Unexpected Allies Part 1 of Black and White'#23
- 'The Burning Age Part 1'#24
- 'The Burning Age Part Two of Three'#25
- 'The Burning Age Part 3 of 3'
#1 Starman (1994)
- 'Cyborg - Blue Devil - Catwoman'#2
- 'Cyborg - Blue Devil - Catwoman'#3
- 'Flash - Blue Devil - Catwoman'#4
- 'Geo-Force - Blue Devil - Catwoman'#5
- 'Geo-Force - Blue Devil - Robin'#6
- 'Peacemaker - Blue Devil - Robin'
#38 Superboy & The Ravers (1996)
- '...La Fraternite De Justice Et Libere!'
#8 Superman: War of the Supermen (2010)
- 'Road Trip, Second Stop: The Romance of the Road'
#3 Superman/Batman (2003)
- 'The Battle for Earth'
#46 Teen Titans (2003)
- 'K, Chapter 3: Varietals'#56
- 'Super/Bat, Conclusion'#81
- 'Sorcerer Kings: Part 1'#83
- 'Sorcerer Kings Part Three'#84
- 'Sorcerer Kings Finale'
The DC Comics Encyclopedia (2004)
HC The Flash: A Celebration of 75 Years (2015)
- 'The DC Comics Encyclopedia'HC
- 'The DC Comics Encyclopedia: Updated And Expanded'
HC The Fury of Firestorm (1982)
- 'The Flash: A Celebration of 75 Years'
#24 The Helmet of Fate: Detective Chimp (2007)
- 'Terminal Velocity!'#46
- 'Deadly Prelude'#47
- 'Dead Devils Don't Wear Blue'
#1 The Phantom Stranger (1969)
- 'The Case of the Massively Magical Monkey Mage'
Titans Secret Files (1999)
Trials of Shazam (2006)
#11 Underworld Unleashed (1995)
- 'There's Magic in the Air'#12
#1 Untold Tales of Blackest Night (2010)
- 'Underworld Unleashed'#2
- 'The Devil to Pay'#3
- 'Seduction of the Innocent'
War of the Gods (1991)
#4 Who's Who in the DC Universe (1990)
- 'In The Beginning... There Was The End'
#9 Who's Who: The Definitive Directory of the DC Universe (1985)
- 'Black Canary To Vixen'
- 'Black Lightning to Byth'
Justice League America (DC)
Justice League Europe (DC)
Justice Society of America (DC)
Sentinels of Magic
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