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Catalog data from Metron, the Grand Comics Database and cataloggd, licensed CC BY-SA 4.0. Cover images © their respective publishers, shown to identify each issue.

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Showcase 4 (Facsimile Edition) #[nn] (2026) · The Collector

Catalog
Showcase 4 (Facsimile Edition) (2026)
#[nn]

DC Comics#[nn]

Showcase 4 (Facsimile Edition)

Showcase 4 (Facsimile Edition) #[nn]

Mystery of the Human Thunderbolt! / The Man Who Broke the Time Barrier!

Publisher: DC Comics
Cover date: September 2026
On sale: Jul 15, 2026
Cover price: $3.99
Pages: 36
Rating: Ages 13+

Key issue

1st appearance of Iris West

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Editions and variants

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3 recorded

DirectMain
Printing not stated · Direct · $3.99

Sources

Grand Comics Database issue 2850488

Catalog data from the Grand Comics Database is licensed CC BY-SA 4.0 and was normalized by The Collector. Cover images belong to their publishers.

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By a freak accident involving lab chemicals and lightning, Barry Allen becomes the fastest man alive and originates a costume based on the comic adventures of the Flash from the 1940's. And it's a good thing too: for he must now face the Turtle Man, termed "The Slowest Man Alive".

Blank Cardstock Cover

Printing not stated · Direct · $4.99

Foil Cardstock Cover

Printing not stated · Direct · $6.99

Credits

Writers: Robert Kanigher, John Broome
Penciller: Carmine Infantino
Inker: Joe Kubert
Letterer: Gaspar Saladino
Covers: Carmine Infantino, Robert Kanigher, Joe Kubert
Editor: Whitney Ellsworth
Cover letters: Ira Schnapp
Other: Julius Schwartz

Characters

Iris West· 1st appearance
Henry Brown
Mazdan
The Flash
The Turtle-Man

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