Publisher: DC Comics
Cover Date: February 1983
Cover Price: $0.60
Writer: Joey Cavalieri
Penciller: Irving "Irv" Novick
Cover Artist: Dick Giordano
First Appearance: Killer Croc (Waylon Jones) (cameo)
Detective Comics (1937) #523 FAQ
How much is Detective Comics (1937) #523 worth?
As of October 2026, a near-mint (9.4) raw copy is valued around $20.00; lower grades range from ~$2.00 (Good) to ~$14.00 (Very Fine).
Is Detective Comics (1937) #523 a key issue?
Yes — it is a key issue, featuring the first appearance of Killer Croc (Waylon Jones) (cameo).
Who created Detective Comics (1937) #523?
Detective Comics (1937) #523 was written by Joey Cavalieri, pencilled by Irving "Irv" Novick, with a cover by Dick Giordano.
When was Detective Comics (1937) #523 published?
DC Comics published it with a February 1983 cover date, originally priced at $0.60.
What is a high-grade copy of Detective Comics (1937) #523 worth?
A Near Mint (9.4) raw copy runs about $20.00. Graded (CGC) copies typically sell for more — available to members.
Price guide
Estimated values by grade, full graded (slab) prices, historical trends, and recent eBay sales for this issue.
Detective Comics (1937) #523 Value — Quick Raw Price Guide
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