Severance

Adam Scott Mark Scout 19 episodes Britt Lower Helly Riggs 19 episodes Tramell Tillman Seth Milchick 19 episodes Zach Cherry Dylan George 19 episodes Jen Tullock Devon Scout-Hale 19 episodes Michael Chernus Ricken Hale 13 episodes Dichen Lachman Ms. Casey 19 episodes Sarah Bock Eustice Huang 10 episodes John Turturro Irving Bailiff 19 episodes Christopher Walken Burt Goodman 19 episodes Patricia Arquette Harmony Cobel 19 episodes Jeff McCarthy Nature Documentary Voice (voice) 1 episodes Hudson Flynn WMC Activist 1 1 episodes Ruby Stevens WMC Activist 2 1 episodes Alexis Cofield Checkout Girl 1 episodes Alexandra Ferrara Weather Channel Voiceover (voice) 1 episodes Michael Kayne Steven 1 episodes Jillian Lindig Myrtle Eagan 1 episodes Lou Martini Jr. Cop Voiceover (voice) 1 episodes James Augustus Lee Bartender 1 episodes Joanne Kelly Nina Kilmer 1 episodes Anthoula Katsimatides Florence 3 episodes Nikki M. James Alexa 4 episodes Cassidy Layton June Kilmer 2 episodes Michael Caiazzo Lead Singer 1 episodes Sydney Cole Alexander Natalie Kalen 7 episodes Margaret Chardiet Bass 1 episodes Annie McNamara Danise 3 episodes Donald Webber Jr. Patton 4 episodes Grace Rex Rebeck 4 episodes Ethan Flower Angelo Arteta 2 episodes Karen Aldridge Asal Regabhi 6 episodes Tye Miller Guitarist 1 episodes Jonathan Iglesias Guy at Venue 1 episodes Olivia Alboher Woman in Old Woman Mask 1 episodes Griffin Stanton-Ameisen Waiter 1 episodes Samantha Farrow Woman in Bride Mask 1 episodes Michael Cumpsty Doug Graner 7 episodes Charles Henry Wood Drummer 1 episodes Sarah Gold Woman in Jester Mask 1 episodes Tara Rodriguez Choreographer 1 episodes Brian Rock Goat Wrangler / Wyatt 1 episodes Rachel Addington Elizabeth 5 episodes Nora Dale Gabriela 'Gabby' Arteta 3 episodes Weston Krukow Man in Sheep's Head Mask 1 episodes Michael Siberry Jame Eagan 6 episodes Claudia Robinson Felicia 7 episodes Arthur Brooks Cecil 1 episodes Rajat Suresh Balf 1 episodes Blaze James Gorman Jim George / Dylan's Son 3 episodes Mark Kenneth Smaltz Judd 6 episodes Amy Stiller Event Coordinator 1 episodes Bob Balaban Mark Wilkins 2 episodes Yul Vazquez Peter 'Petey' Kilmer / Petey (voice) 4 episodes Alia Shawkat Gwendolyn Y. 2 episodes Stefano Carannante Dario Rossi 2 episodes Sarah Sherman Water Tower (voice) 1 episodes Keanu Reeves Animated Lumon Administrative Building (voice) (uncredited) 1 episodes Ólafur Darri Ólafsson Mr. Drummond 6 episodes Adrian Martinez Mr. Saliba 1 episodes Derek Hedlund Lumon Security Guard #1 1 episodes Adam Jepsen Shadow Mark / Man in Hallway 1 episodes Johnny Bermudez Lumon Security Guard #2 1 episodes Gwendoline Christie Lorne 2 episodes Jared Johnston Goat Man 1 episodes Irish Knight Gorman Merrick George 3 episodes Matthew LaBanca Shadow Irving 1 episodes Quentin Avery Brown Shadow Dylan 1 episodes Faith Vaughn Woe 1 episodes Robby Benson Dr. Mauer 4 episodes John Noble Fields 1 episodes Marc Geller Kier Eagan (voice) 3 episodes Merritt Wever Gretchen George (voice) (uncredited) / Gretchen George 1 episodes Ben Stiller Kier Eagan (voice) (uncredited) 1 episodes Sandra Bernhard Cecily 2 episodes Eric J Carlson Mark Watcher 1 episodes Jane Alexander Celestine 'Sissy' Cobel 1 episodes James Le Gros Hampton 1 episodes Jerry Stahl Magnus 1 episodes Clare Coulter Rose 1 episodes Donald Tripe Ether Addict 1 episodes