These two appear in the Growing Up Creepie episode "Home is Where the Haunt is". They're probably just here to give our heroine a challenge, but I have my suspicions.
The man has a purple shirt with a black vest to compliment his black hair, glasses, and pants. The woman wears a wine colored dress with an eggplant colored vest. She also wears spider piercings.
These people are both eerily similar to Creepie in terms of color scheme, behavior, preferences,