Character Price Index
Gideon Comics
Key issues, first appearances, and market estimates for 1 tracked comic.
Guide data reviewed July 2026. See our editorial policy and valuation disclaimer.
Tracked Issues
1
Highest Value
$650
Average Value
$650
First Appearance
1991
🌟 Definitive First Appearance
View Issue Details →
New Mutants #98 (1991)
Gideon debuted in this historic issue published by Marvel. Estimated market value ranges from $90 up to $3.2K.
🔑 Key Issues
All Tracked Appearances
📸 AI Cover Scanner App
Have this comic in your collection? Scan it for instant market value.
Point your phone camera at any cover to identify the issue, detect rare variant covers, and research market estimates from available sold-price data.
- No barcode needed (Works on pre-1974 comics)
- Detects CGC grades 0.5 to 10.0
- Sales-data research and market estimates
- 100% Free collection tracking
Frequently Asked Questions
What is the most valuable Gideon comic book?
The top-valued comic issue featuring Gideon in our database is New Mutants #98 (1991), estimated at $650 depending on physical condition.
When did Gideon make their first appearance?
Gideon debuted in New Mutants #98 in 1991, published by Marvel.