well, maybe not, but they are sort of alive.
Jonny Quest episode "The Curse of Anubis". see what happens when you steal stuff from a tomb? a mummy comes to life and saves the heroes at the last minute while giving the villains their proper comeuppance.
and there's nothing explained why the mummy came to life- no tana leaves or anything.
I never read Marvel's mummy series, but it looks kind of cool. at least the original version does, anyway.