Somthing close to angels of other religions would be the valkyries of the Norse beliefs.

We have the dubious character Loki who is the adversary of the Gods.

In Ragnarokr or the end of the world evil giants,spirits and demons will consume the world from the land of Jotunheim or other realms.

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Deutschland Das Nationalbewusstsein!

55th Stanza.
Wise in measure should each man be;
but let him not wax too wise;
seldom a heart will sing with joy
if the owner be all too wise.

Havamal~

Today we drink tomorrow we die.

Be weary of the machine so you don't become one yourself.