Cosmic King (Laevar Bolto of Venus)
Cosmic King (Laevar Bolto of Venus) appears in 18 issues in grailworth's catalog, and was first published in 1961. First appearance: Superman #147 (1939), cover dated 1961.
First appearance
Every appearance we value
Action Comics (1938) 1 issue
Adventure Comics (1938) 2 issues
Adventure Comics (2009) 2 issues
Crisis on Infinite Earths (1985) 1 issue
Legionnaires (1993) 1 issue
Supergirl (2005) 1 issue
Superman (1939) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.