Cast and credits of Howard Lovecraft and the Kingdom of Madness

Kiefer O'Reilly
Howard Lovecraft (voice)

Jeffrey Combs
H.P. Lovecraft (voice)

Alison Wandzura
Mary Lovecraft (voice)

Mark Hamill
Dr. Henry Armitage (voice)

Ashleigh Ball
Ellen Ellery (voice)

Scott McNeil
Hamish Rice / Govlins (voice)

Nick Wolfhard
William Dyer (voice)

Christopher Plummer
Dr. Jeffrey West (voice)

Finn Wolfhard
Herbert West (voice)

Doug Bradley
Nyarlathotep (voice)