Alex Hirsch

as Himself/Grunkle Stan (Voice)/Soos (Voice)/Bill Cipher (Voice)/Quentin Trembley (Voice)/Old Man McGucket (Voice)

Dave Wittenberg

as Time Baby (Voice)

Jason Ritter

as Dipper (Voice)

Kristen Schaal

as Mabel (Voice)

Linda Cardellini

as Wendy (Voice)

Thurop Van Orman

as Lil’ Gideon (Voice)

T.J. Miller

as Robbie (Voice)

Jennifer Coolidge

as Lazy Susan (Voice)