Kiefer O'Reilly
Howard Lovecraft / Davik (voice)

Michelle O'Reilly
Michelle Lovecraft (voice)

Summer O'Reilly
Gotha (voice)

Phoenix O'Reilly
Twi'i (voice)

Harmony O'Reilly
Innes (voice)

Scott McNeil
Govlins / Ice Govlin 'Barry' / Dagon (voice)

Jeffrey Combs
King Abdul (voice)

Ron Perlman
Shoggoth (voice)

Doug Bradley
The Envoy / Nyarlathotep (voice)

Mark Hamill
Dr. Henry Armitage (voice)

Tyler Nicol
Winfield Lovecraft (voice)

Christopher Plummer
Dr. West (voice)