Brainiac
Brainiac (Silver/Bronze Age DC, Superman villain) appears in 48 issues in grailworth's catalog, and was first published in 1958. First appearance: Action Comics #242 (1938), cover dated 1958. Key issues with Brainiac include Action Comics #242 (1938).
First appearance
Key issues
Origin
Every appearance we value
Adventure Comics (1938) 1 issue
Adventures of Superman (2013) 1 issue
Crisis on Infinite Earths (1985) 2 issues
DC Comics Presents (1978) 1 issue
DCU: Legacies (2010) 1 issue
Outsiders (2003) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.