Okay,

I need somebody or some people (gender doesn't matter) that can deliver creepy voices, almost in a whisper. This role is open to up to four or more people. All I need are whispers that are reversed. For your audition, just say something that is reversed and you think would fit. 

Additionally, it doesn't matter who you are. Male or Female voices will really set the mood.

I look forward to seeing your submissions.