An index of actors and actresses that appeared on Warehouse 13 and it's associated web series Grand Designs that have their own pages.
Main show:
- Aaron Ashmore: Steve Jinks.
- Alessandra Torresani: Meagan Reese.
- Alex House: Greg Permut.
- Allison Scagliotti: Claudia Donovan.
- Amy Acker: Tracy Bering.
- Andrew Jackson: Jackson.
- Anthony Head: Paracelsus.
- Armin Shimerman: Charlie Martin.
- Ashley Williams: Sally Stukowski.
- Brent Spiner: Brother Adrian.
- C.C.H. Pounder: Mrs. Irene Frederic.
- Carter Hayden: Wally.
- Charles Malik Whitfield: Raymond.
- Charlie Weber: Liam Napier.
- Craig Eldridge: Professor Moulton.
- Dee Wallace: Mrs. Garner.
- Desmond Campbell: Albert the Security Guard.
- Eddie McClintock: Pete Lattimer.
- Enrico Colantoni: Anthony Bishop.
- Erica Cerra: Jillian Whitman.
- Erick Avari: Caturanga.
- Erin Way: Katarina.
- Faran Tahir: Adwin Kosan.
- Genelle Williams: Leena.
- Jaime Murray: Helena G. Wells
- James Marsters: Professor Bennett Sutton/The Count of St. Germain.
- James Naughton: Gilbert Radburn.
- Janet Varney: Elise Meyers.
- Jeffrey Bowyer-Chapman: Jalapeno Harry's Manager.
- Jeri Ryan: Major Amanda Lattimer.
- Joanne Kelly: Myka Bering.
- Joe Flanigan: Jeff Weaver.
- Joel Grey: Monty the Magnificent.
- Johnny Pacar: Dwayne Maddox.
- Josh Blaylock: Nick Powell.
- Judd Hirsch: Izzy Weisfelt.
- Kate Mulgrew: Jane Lattimer.
- Kelly Hu: Abigail Cho.
- Kirsten Nelson: Judy Giltoy.
- Laura Innes: Emma Jinks.
- Lindsay Wagner: Dr. Vanessa Calder.
- Mark Deklin: Ted Simkins.
- Mark Sheppard: Benedict Valda.
- Max Morrow: Tyler Struhl.
- Megan Fahlenbock: Monica Hopper.
- Megan Gallagher: Diane Hewlett.
- Melanie Scrofano: Alice/Kristen.
- Michael Boatman: Professor Edward Marzotto.
- Neil Crone: Mr. Ives.
- Neil Grayston: Douglas Fargo.
- Niall Matter: Gary Whitman.
- Nolan Gerard Funk: Todd.
- Nora Zehetner: Rose.
- Patrick Flueger: Ranger Evan Smith.
- Paul Blackthorne: Larry Newley.
- Paula Garces: Dr. Kelly Hernandez.
- Philip Williams: Kev.
- Phillip Rhys: Perry.
- Polly Walker: Charlotte Dupres/The Countess of St. Germain.
- René Auberjonois: Hugo Miller.
- Richard Waugh: Father Mitchell.
- Roger Rees: James MacPherson.
- Ryan Cartwright: Oswald.
- Sam Huntington: Ethan Ellis.
- Samm Levine: Scott Mohr.
- Sasha Roiz: Marcus Diamond.
- Saul Rubinek: Artie Nielsen.
- Simon Reynolds: Daniel Dickenson.
- Simu Liu: Bartender.
- Sônia Braga: Alicia.
- Steve Valentine: Val Preston.
- Steven Eckholdt: Gil Moorpark.
- Steven Yeun: Gibson Rice.
- Tia Carrere: Katie Logan.
- Timothy Omundson: Coach.
- Tori Anderson: Princess.
- Tricia Helfer: Bonnie Belski.
- Tyler Hynes: Joshua Donovan/Joshua Wheeler.
- Yancey Arias: Jim.
- Zack Ward: Leo.
Grand Designs:
- Richard Epcar: Thomas Edison.
- Todd Haberkorn: M.C. Escher.
- Yuri Lowenthal: Nikola Tesla.
