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Cosmic Boy
4 appearances · Silver Age · 1966–2026 · 1 key issues
Who is Cosmic Boy?
A Silver Age creation brought to life by the legendary duo of Bill Finger and Bob Kane, Cosmic Boy made his debut in Superman #12 in 1966 — stepping into a comics landscape crackling with imagination and invention. Published under Urban Comics, this character has kept remarkable company over the decades, sharing pages with titans like Green Lantern, Flash, Wonder Woman, and Bruce Wayne across series including Legends and Superman. With appearances stretching across roughly sixty years and a key collector's issue to their name, Cosmic Boy represents exactly the kind of deep-catalog discovery that reminds you why long-time readers never stop digging through the back issues.
Superman
#12
#12
★ First appearance
Superman #12
Top series
Key issues
Appearances
Superman (1965)
Dawn of Green Arrow & Black Canary (2024)
The Final Night (2025)
Legends (2026)



