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Action Comics #421 cover

Cover: Nick Cardy

Action Comics #421

Feb 1973 · DC · 0.20 USD

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Contains 2 stories

The Fantastic Feats of Captain Strong!

15.67 pp · Superhero

Captain Strong (intro)SupermanBilly Anders

In "The Fantastic Feats of Captain Strong!", Jo recounts how the sea-powered hero Captain Strong saved him from a dire situation, revealing that the hero’s strength comes from a rare marine algae named Sumba. When a food conglomerate tries to steal the algae’s secret, Captain Strong resists their schemes—until a deceptive tactic pushes him to the brink, forcing Superman to intervene.

The Headline Maker!

8 pp · Superhero

Green ArrowBlack CanaryLucas Branson

ComicBooks.com Value

Our Model is In Beta

Raw (Fine) $18

CGC 9.8 · 17 in census $498

CGC 9.6 · 20 in census $208

CGC 9.4 · 17 in census $151

CGC 9.2 · 8 in census $92*

CGC 9.0 · 5 in census $66

CGC 8.5 · 6 in census $61*

Show all 19 grades ▾

CGC 8.0 · 6 in census $56*

CGC 7.5 · 4 in census $49*

CGC 7.0 · 4 in census $42*

CGC 6.5 · 6 in census $38*

CGC 6.0 none in existence

CGC 5.5 · 2 in census $29*

CGC 5.0 none in existence

CGC 4.5 · 1 in census $25*

CGC 4.0 none in existence

CGC 3.5 none in existence

CGC 3.0 none in existence

CGC 2.5 none in existence

CGC 2.0 · 2 in census $20*

* estimate — limited direct-sales data at this grade

Our model’s value — refined as new sales data arrives · CGC census counts shown where available

More listings for this title

VG $17.5 VG $18 VG $18 VG $21.44 FN $25 CGC 9.6 $200 CGC 9.8 $398 ACTION COMICS 421 - SUPERMAN- CAPTAIN STRONG POPEYE - SILVER AGE DC COMICS $4.93

Related listings we couldn't confirm as this exact issue · 19 total · seen 35 days ago

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Full credits

writer Cary Bates

artist Curt Swan

inker Murphy Anderson

letterer Ben Oda

cover pencils, inks Nick Cardy

Reprints

Reprinted in Superman #10/1973 (1973), Supermann #10/1973 (1973), Stålmannen #11/1973 (1973), Super Adventure Comic #60 (1974), Superman Supacomic #176 (1974), Superman et Batman et Robin #69 (1974), Superman et Batman et Robin #68 (1974), Gigant #2/1976 (1976), Gigant #2/1976 (1976), Superman Extra #5 (1982), The Best of DC #48 (1984), Supermán #982, Superman #71

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#23 1st appearance — Lex Luthor

#242

#242 1st appearance — Brainiac

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#340 1st appearance — Parasite

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