This page contains a listing of all known appearances of Heimdall (Earth-788). If you find an Issue this Character appears in that is not shown here, please edit that issue adding "Heimdall (Earth-788)" to the proper section of the Appearances. Chronological Appearances (by Publication) Title Year, Month What If? #10 1978, 08 1978, August Trending pages What If? Vol 1 10 All items (1) # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other What If? Vol 1 10 Retrieved from "https://marvel.fandom.com/wiki/Category:Heimdall_(Earth-788)/Appearances?oldid=2303813" Categories: Character Appearances Community content is available under CC-BY-SA unless otherwise noted.