Adam Scott

Mark Scout

Britt Lower

Helly Riggs

Tramell Tillman

Seth Milchick

Zach Cherry

Dylan George

Jen Tullock

Devon

Michael Chernus

Ricken Hale

Dichen Lachman

Ms. Casey

Sarah Bock

Miss Huang

John Turturro

Irving Bailiff

Christopher Walken

Burt Goodman

Patricia Arquette

Harmony Cobel

Anthoula Katsimatides

Florence

Sydney Cole Alexander

Natalie Kalen

Yul Vazquez

Peter 'Petey' Kilmer

Donald Webber Jr.

Patton

Grace Rex

Rebeck

Karen Aldridge

Asal Regabhi

Michael Siberry

Jame Eagan

Marc Geller

Kier Eagan

Claudia Robinson

Felicia

Mark Kenneth Smaltz

Judd

Bob Balaban

Mark Wilkins

Alia Shawkat

Gwendolyn Y.

Stefano Carannante

Dario Rossi

Sarah Sherman

Water Tower (voice)

Keanu Reeves

Animated Lumon Administrative Building (voice) (uncredited)

Ólafur Darri Ólafsson

Mr. Drummond

Adrian Martinez

Mr. Saliba

Jules Forsberg-Lary

Waitress

Derek Hedlund

Lumon Security Guard #1

Johnny Bermudez

Lumon Security Guard #2

Merritt Wever

Gretchen George

Gwendoline Christie

Mammalian Department Director

Brian Rock

Wyatt

Jared Johnston

Goat Man

Blaze James Gorman

Jim George

Irish Knight Gorman

Merrick George

Adam Jepsen

Shadow Mark

Mishay Petronelli

Shadow Helly

Matthew LaBanca

Shadow Irving

Quentin Avery Brown

Shadow Dylan

Faith Vaughn

Woe