Mr. Atom (Captain Marvel foe)
Mr. Atom (Captain Marvel foe) appears in 10 issues in grailworth's catalog, and was first published in 1947.
Every appearance we value
Convergence Shazam (2015) 2 issues
Infinite Crisis (2005) 1 issue
Justice League of America (2006) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.