Object label
Marvel · Comics · Captain Marvel · 1970
Bruce Banner agrees to help Mar-Vell escape the Negative Zone, but becomes enraged and turns into the Hulk!
Why collectors care
Captain Marvel #21 belongs to a comics graph built around publisher, series, issue number, characters, creators like Artie Simek, Dan Adkins, and Gil Kane, and story context. The important part is not just the issue record, but how it connects into runs, appearances, and adjacent covers.
Collector summary
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Captain Marvel #21 is a comics collectible connected to Marvel and Captain Marvel. Useful collector signals include release year 1970, issue #21, and artist context from Gil Kane, Artie Simek, and Stan Lee. Captain Marvel has 2 catalogued releases on GrailHub, making this page a route into completion, variants, and nearby objects.
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Collector notes
Captain Marvel #21 is a comics entry for issue #21 in Captain Marvel from 1970. GrailHub tracks publisher, series, issue number, cover date, creators, characters, and first appearances where that data is available.
Marvel pages connect this issue back to its publisher, series, creators, and related issues. For comic collectors, those links matter because discovery often starts with a character, creative team, first appearance, or a run of issues rather than one isolated record.
Characters associated with this issue include Captain Marvel (Mar-Vell), Hulk, and Rick Jones.
Series context
Captain Marvel
Captain Marvel groups related comics entries from Marvel, so collectors can move from this object into nearby releases instead of treating it as a standalone record.
- Catalogued here
- 2 objects
- Release span
- 1970
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Collection tracking
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Quick facts
- Publisher
- Marvel
- Series
- Captain Marvel
- Issue number
- #21
- Cover date
- Aug 1, 1970
- Characters
- Captain Marvel (Mar-Vell), Hulk, Rick Jones
- Creators
- Artie Simek, Dan Adkins, Gil Kane, Roy Thomas, Stan Lee
Market snapshot
Not marketplace, just context
- Retail price
- Not tracked
- Current estimate
- Not tracked
- Sold out / retired
- Lifecycle unknown
- Source
- BrickEconomy
- Last updated
- Not refreshed yet
Market data is informational and may be incomplete. GrailHub is not a marketplace or appraisal service.
Data source
- Source
- Metron
- Source ID
- 32171
- Source URL
- View on Metron
Comic data provided by Metron.
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