The Squadron Sinister is a supervillain team appearing in American comic books published by Marvel Comics. The Squadron Sinister first appeared in the final panel of The Avengers #69 (October 1969), created by Roy Thomas and Sal Buscema.
The Squadron Sinister is a supervillain team appearing in American comic books published by Marvel Comics. The Squadron Sinister first appeared in the final panel of The Avengers #69 (October 1969), created by Roy Thomas and Sal Buscema.
Source: Wikipedia "Squadron Sinister" · CC BY-SA 4.0
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