Cluemaster (Arthur Brown)
Cluemaster (Arthur Brown) appears in 20 issues in grailworth's catalog, and was first published in 1966.
Every appearance we value
Batgirl (2009) 2 issues
Batgirls (2022) 2 issues
Batman (2016) 1 issue
Detective Comics (1937) 2 issues
Grayson (2014) 1 issue
Justice League America (1989) 2 issues
Justice League Europe (1989) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.