GUARDIANS OF THE GALAXY VOL. 3. Premiered in theaters May 5, 2023. Purchases made from the eBay link may result in Key Collector Comics receiving a commission 

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Key Facts

1st appearance of Krugarr, the Sorcerer Supreme of the 31st Century

Marvel ⋅ 2008

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Key Facts

1st appearance of Knowhere, a celestial's decapitated head re-purposed as a space station at the edge of the universe

1st appearance of Cosmo, a Russian cosmonaut dog with telepathic abilities

1st team appearance of the Luminals, Knowhere's security detail led by Cynosure

Marvel ⋅ 1975

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Key Facts

1st full appearance of Starhawk

Marvel ⋅ 1998

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$2
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$8

Key Facts

1st appearance of Ayesha, formerly Her, Kismet and Paragon

Marvel ⋅ 1969

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$1.5k

Key Facts

1st full appearance of HIM, later named Adam Warlock

Marvel ⋅ 1975

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$15
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Key Facts

1st appearance of Gamora

2nd appearance of Pip the Troll

3rd appearance of Magus

Debut of new Adam Warlock costume

Marvel ⋅ 1973

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Key Facts

1st appearance of Thanos, an Eternal from Titan born with the Deviants gene

1st cameo appearance of Eros aka Starfox, brother of Thanos

1st appearance of Kronos, Grandfather of Thanos

1st appearance of Mentor, father of Thanos

1st appearance of Drax the Destroyer, created by Kronus to kill Thanos

1st appearance of the Blood Brothers

Curtis ⋅ 1976

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Key Facts

1st appearance of Star-Lord in a magazine

See: Marvel Spotlight Vol. 2 #6 for Star-Lord's first appearance in a standard comic book

1st appearance of Ragnar, Master of the Sun

1st appearance of Prince Wayfinder, later created the Microverse

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Key Facts

1st appearance of Groot, an alien resembling a tree

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Key Facts

1st full appearance of Phyla-Vell, the cloned daughter of Mar-vell and Elysius

[December 2021 - Phyla-Vell confirmed by a Key Collector Comics source to appear in the MCU]

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Key Facts

1st appearance of Nebula, the adopted daughter of Thanos

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Key Facts

1st appearance of Mantis

1st appearance of Pantha

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Key Facts

2nd appearance and first cover of Rocket Raccoon, formerly Rocky Raccoon in Marvel Preview #7

1st appearance of Judson Jakes

1st appearance of Lylla, an otter and the love interest of Rocket

1st appearance of Wal Rus

1st appearance of Blackjack O'Hare

Marvel ⋅ 1966

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Key Facts

1st appearance of the High Evolutionary, a geneticist obsessed with evolutionary experimentation

1st appearance of Man-Beast, a wolf modified by the High Evolutionary

1st appearance of Fafnir, a dragon from the realm of Nastrond

Introduction of Wundagore Mountain

[May 2023 - James Gunn tweeted in response to a question regarding the fate of the High Evolutionary that he is imprisoned on Knowhere]

Marvel ⋅ 1972

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Key Facts

Rebirth of HIM, renamed Warlock by the High Evolutionary

Debut of Warlock's costume including an unnamed emerald, later revealed to be the Soul Infinity Stone

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