Nightwing (Superman, as hero of Kandor)
Nightwing (Superman, as hero of Kandor) appears in 2 issues in grailworth's catalog, and was first published in 1963. First appearance: Superman #158 (1939), cover dated 1963.
First appearance
Every appearance we value
Superman (1939) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.