Sleeper (robot)

14 appearances · First published 1965

Sleeper (robot) appears in 14 issues in grailworth's catalog, and was first published in 1965.

Every appearance we value

Avengers (1963) 1 issue

Annual 19

Captain America (1968) 12 issues

Captain America (2005) 1 issue

#50

Character appearances from the Grand Comics Database, CC BY-SA 4.0.