Olga Boogie is the daughter of Oogie Boogie, the main antagonist from The Nightmare Before Christmas. In the webisodes she is voiced by Cree Summer who also did the voice of Susie Carmichael in Rugrats.
Olga is the arch rival of Judy Skellington. They both share the same kind of rivalry as their fathers.
Dungheap is Olga's pet giant cockroach.
Being the daughter of Oogie Boogie, Olga doesn't have that many friends. She does however hang out with Nefera De Nile and Torelai Stripe. Sometimes she enlists the help of Lock, Shock and Barrel to carry out a sinister scheme.