The Skrulls first appeared in comics back in the 1960s.
The Skrulls made their debut in comics quite a while ago, specifically in the 1960s. They've since become a significant part of the comic book universe.
I'm not sure exactly when the first Skrulls comic was released. You might need to check with a comic expert or do some detailed research.
Deadpool first showed up in The New Mutants #98 in February 1991.
Shazam first appeared in Whiz Comics #2 in 1940.
Batman's comic debut was in Detective Comics #27 back in May 1939. It was a defining moment for the character and the start of his long and iconic journey in the comic world.
Wolverine first appeared in The Incredible Hulk #180 in 1974.
The Joker made his debut in Batman #1 back in 1940. Since then, he's become one of the most iconic villains in comic book history.
Thor first appeared in Journey into Mystery #83 in August 1962.
Thanos first appeared in Iron Man #55 in February 1973.
Batman first appeared in Detective Comics #27 in May 1939.