BRAINWAVE

All-Star Comics #15"The Man Who Created Images"

Earliest catalogued appearance of Brainwave.

Feb 1943

No listings

All-Star Comics #17"The Brain Wave Goes Berserk"

Jun 1943

No listings

All-Star Comics #30"The Dreams of Madness"

Aug 1946

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All-Star Comics #37"The Injustice Society of the World!"

Oct 1947

No listings

All-Star Comics #58

Earliest catalogued appearances of Power Girl and Dick Grayson (Earth 2).

Feb 1976

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All-Star Comics #59

Apr 1976

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All-Star Comics #66

Jun 1977

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Showcase #97

Mar 1978

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Showcase #98

Mar 1978

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Showcase #99

Apr 1978

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DC Special Blue Ribbon Digest #3

Aug 1980

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Justice League of America #195"Targets on Two Worlds"

Oct 1981

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Justice League of America #196"Countdown to Crisis!"

Nov 1981

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Justice League of America #197"Crisis in Limbo!"

Dec 1981

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All-Star Squadron #17"To Slay the Body Electric!"

Jan 1983

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All-Star Squadron #19"Death Considered as a State of Mind!"

Mar 1983

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All-Star Squadron #20"...For the Dark Things Cannot Stand the Light...!"

Apr 1983

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All-Star Squadron #26"Talons Across Time!"

Oct 1983

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All-Star Squadron Annual #2"The Ultra War!"

Nov 1983

No listings

Infinity, Inc. #1

Mar 1984

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Infinity, Inc. #2

May 1984

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Infinity, Inc. #7

Oct 1984

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Infinity, Inc. #9

Dec 1984

No listings

Infinity, Inc. #10

Jan 1985

No listings

Who's Who: The Definitive Directory of the DC Universe #3

Earliest catalogued appearance of Brother Power.

May 1985

No listings

Infinity, Inc. #23

Feb 1986

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Infinity, Inc. #29

Aug 1986

No listings

Secret Origins #7

Oct 1986

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All-Star Squadron #63"The Origin of the Golden Age Robotman"

Nov 1986

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Secret Origins #9

Dec 1986

No listings

Infinity, Inc. #53

Aug 1988

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Justice Society of America #4"Life On The Line"

Nov 1992

No listings

JLA Secret Files #1

Earliest catalogued appearance of Hourman (Matthew).

Sep 1997

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Superman and Batman: World's Funnest #1"Last Imp Standing!"

Earliest catalogued appearance of Green Lantern (Tangent).

Jan 2001

No listings

Golden Age Secret Files #1

Feb 2001

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Superman/Batman #27"Nevermind"

Jul 2006

No listings

Suicide Squad #67"Danse Macabre Part 1"

Mar 2010

No listings

DCU: Legacies #2

Aug 2010

No listings

Earth 2 Annual #1"Secrets and Origins"

Earliest catalogued appearance of Captain Steel.

Jul 2013

No listings

Convergence Action Comics #1

Jun 2015

No listings

Hawkman #27

Nov 2020

No listings

New History of the DC Universe #1

Aug 2025

No listings