Does anyone know any dark classical composers? or dark orchestras, any classical stuff thats dark or evil?

im looking for dark or evil classical, symphonies, or orchestras

Mephisto Waltz - Liszt
Greig can get pretty dark {Peer Gynt}
Night On Bald Mountain, Songs and Dances of Death, etc - Mussorgsky
Mozart's Requiem {especially}
Tchaikovsky
Debussy... though I can't think of anything particular offhand... I suppose that's all in how you look at it.

Lots of later twentieth and twenty-first century stuff is pretty dark... {must be that silly bomb thing}

Cowell
Cage
Penderecki
Feldman
Glass has his darker moments
Steve Reich...

Try to find some J.S Bach compositions, He composes a lot of stuff for pipe organs, and they sound pretty melancholy, Listen to Toccaa and Fugue in D minor in particular, its famous for being in Phantom of the opera.

Wagner's G枚tterd盲mmerung aka Twilight of the Gods" is the last of the four operas that comprise Der Ring des Nibelungen (The Ring of the Nibelung), by Richard Wagner.

It was originally entitled Siegfrieds Tod or The Death of Siegfried

The title is a translation into German of the Old Norse phrase Ragnar枚k, which in Norse mythology refers to a prophesied war of the gods which brings about the end of the world.

The term G枚tterd盲mmerung is occasionally used in English, referring to a disastrous conclusion of events.

O Fortuna from Carmina Burana by Carl Orff.

hindemith

you might like Wojciech Kilar's Soundtrack to "Bram Stoker's Dracula"

Igor Stravinski - Le Sacre Du Printemps (The Rite of Spring)

Also, the Itzahk Pearlman recordings of Pagannini's 24 caprices.

Bartok - Concerto for Orchestra
Stravinsky - The Firebird (definitely the first section with the low strings)