Samuel Barnett
as Dirk Gently
Elijah Wood
as Todd Brotzman
Jade Eshete
as Farah Black
Hannah Marks
as Amanda Brotzman
Osric Chau
as Jacob Vogel
Mpho Koaho
as Ken Adams
Fiona Dourif
as Bartine "Bart" Curlish
Michael Eklund
as Martin
Dustin Milligan
as Sergeant Hugo Friedkin