Justice League of America (The Detroit Era)

row 1: Martian Manhunter, Zatanna, Elongated Man, Aquaman

row 2: Vixen, Vibe, Gypsy, Steel

row 1: Batman, Elongated Man, Zatanna, Martian Manhunter

row 2: Vixen, Vibe, Gypsy, Steel

Mal Duncan

Mal Duncan of the 1970s' Teen Titans as Guardian and as Hornblower.
Though I have a weak spot for costumes that a majority of the comic community dislikes, I have to confess, that the last one in the row is really a bit too much. Still I'm glad, that it existed, as it adds variety and fun!  

Seven Soldiers of Victory

The Seven Soldiers Of Victory from the Pre-Crisis era:
Stripesy, Star-Spangled Kid, Crimson Avenger, Shining Knight, Speedy, Green Arrow, Vigilante

All-Star Squadron (Who's Who 1987)

 The All-Star Squadron according to Who's Who Update #1 from August 1987.

row 1: Starman, Flying Fox, Fury, Flash, Hawkgirl, Hawkman, Sandy, the Golden Boy, Sandman, Manhunter II, Atom, Johnny Thunder, Thunderbolt, Wildcat, Spectre

row 2: Tarantula, Doll Man, Plastic Man, Amazing Man, Hourman, Star-Spangled Kid, Stripesy, Robotman I, Commander Steel, Human Bomb, Jester, Manhunter I, Dyna-Mite, TNT, Doctor Occult

row 3: Midnight, Shining Knight, Red Bee, Ray, Doctor Mid-Nite, Johnny Quick, Liberty Belle, Firebrand II, Wing, Crimson Avenger, Zatara, Judomaster, Tiger, Captain Triumph, Phantom Lady

row 4: Whip, Sargon, Guardian, Uncle Sam, Mister Terrific, "Iron" Munro, Air Wave I, Neptune Perkins, Tsunami, Doctor Fate, Green Lantern I, Tigress, Black Condor, Mister America, Vigilante I  

Vixen

 Mari McCabe as Vixen in three outfits.

Left: First appearance in Action Comics #521 (1981).

Middle: Look when she joined the Justice League of America in the so-called Detroit era. 

Right: When she became a member again of the Justice League in 2006. 

Wonder Woman: Judgment In Infinity

The 3-parted Wonder Woman story in issues #291-293 featured many heroines  from all over the DC Universe.

top row: Huntress, Power Girl, Black Canary, Wonder Girl, Raven, Starfire

bottom row: Zatanna, Phantom Lady, Wonder Woman, Supergirl, Madame Xanadu

 

Justice Society Of America 1969

The JSA according to a pin-up by Murphy Anderson from Justice League Of America #97 (1969)

top row: Batman, Superman

2nd row: The Spectre, Hawkman/Carter Hall, Hourman, The Flash/Jay Garrick, Wildcat, Mister Terrific, Johnny Quick, Starman

3rd row: The Atom/Al Pratt, Robin

bottom row: Wonder Woman, Green Lantern/Alan Scott, Sandman, Doctor Mid-Nite, Doctor Fate, Red Tornado/Ma Hunkel, Red Tornado, Black Canary

All-Star Sqaudron (Post-Crisis)

 The Post-Crisis version of the All-Star Squadron from Earth-2 that has been shown in this shot in issue #60 in 1986

Top row: Star-Spangled Kid / Stripesy / Crimson Avenger / Wing / Tarantula / Hourman / Firebrand / Shining Knight / Starman / Air Wave / Vigilante / Human Bomb / Johnny Thunder / Jester / The Whip / Zatara

Middle row: Amazing Man / Green Arrow / Speedy / Manhunter / Dr. Mid-Nite / Wildcat / Guardian / Sandy the Golden Boy / Sandman / Dan the Dyna-Mite / TNT / Mr. Terrific / Sargon the Sorcerer / Mister America / Doctor Occult

Bottom row: Johnny Quick / Liberty Belle / Doctor Fate / Robotman / Atom / Phantom Lady / Black Condor / Uncle Sam / Doll Man / The Ray / Plastic Man / Flash / Hawkgirl / Hawkman / Green Lantern /  Spectre

All-Star Squadron (Pre-Crisis)

The Pre-Crisis version of the All-Star Squadron from Earth-2 that has been shown in issue #60 in 1986

Top row: Star-Spangled Kid / Stripesy / Crimson Avenger / Wing / Tarantula / Hourman / Firebrand / Shining Knight / Starman / Air Wave / Vigilante / Johnny Thunder / The Whip / Zatara

Middle row: Amazing Man / Green Arrow / Speedy / Manhunter / Dr. Mid-Nite / Wildcat / Guardian / Sandy the Golden Boy / Sandman / Dan the Dyna-Mite / TNT / Mr. Terrific / Sargon the Sorcerer / Mister America / Doctor Occult

Bottom row: Johnny Quick / Liberty Belle / Doctor Fate / Robotman / Atom / Wonder Woman / Aquaman / Superman / Batman / Robin / Flash / Hawkgirl / Hawkman / Green Lantern /  Spectre

The Fatal Five

 The Fatal Five in the Pre-crisis era:
Tharok, Emerald Empress with the Emerald Eye, Mano, Persuader, Validus 

The Rainbow Batmen and Target Batman

 The Batman outfits according to Detective Comics #241 (1957)

Freedom Fighters - First Team

 The first team that has been retconned in All-Star Squadron in 1984.

from left to right:
Invisible Hood, Hourman, Magno, Uncle Sam, Red Torpedo, Neon the Unknown, Miss America.

Dick Grayson as Nightwing

The evolution or development of Dick Grayson's Nighwing costume

Blue Beetle (Dan Garett)

He first appeared at DC in 1985.
The first and second image try to cover, how he's been presented retroactively.
The third image is how he appeared in BLUE BEETLE #17 and 18 in 1987.

Freedom Fighters (1985)

The Freedom Fighters in All-Star Squadron #50 after Uncle Sam recruited them and when they went to Earth-X.

1st row: The Ray, Midnight, Doll Man, Uncle Sam, Phantom Lady, Black Condor

2nd row: Blackhawk, Jester, Human Bomb, Manhunter (Dan Richards), Plastic Man, Spider