|
| Patrick Seitz | ... | Artanis (voice) |
| Travis Willingham | ... | Karax (voice) |
| Rachel Robinson | ... | Vorazun (voice) |
| Tricia Helfer | ... | Sarah Kerrigan / Queen of Blades (voice) |
| Fred Tatasciore | ... | Zeratul / Swann / Marauder (voice) |
| Robert Clotworthy | ... | Jim Raynor (voice) |
| Claudia Christian | ... | Rohanna (voice) (as Claudia Christain) |
| Marc Graue | ... | Fenix (voice) |
| John de Lancie | ... | Alarak (voice) |
| Nika Futterman | ... | Zagara / Zerg Queen (voice) |
| Rick D. Wasserman | ... | Amon (voice) |
| Mary Elizabeth McGlynn | ... | Talis (voice) |
| Michael Dorn | ... | Ouros / Xel'naga (voice) |
| Cree Summer | ... | Selendis (voice) |
| Josh Keaton | ... | Valerian Mengsk (voice) |
| Victor Brandt | ... | Alexi Stukov (voice) |
| Brian Bloom | ... | Matt Horner (voice) |
| April Stewart | ... | Additional Voices (voice) |
| Cam Clarke | ... | Additional Voices (voice) |
| Christopher Judge | ... | Additional Voices (voice) |
| Courtenay Taylor | ... | Additional Voices (voice) |
| Darin De Paul | ... | Additional Voices (voice) |
| David Boat | ... | Additional Voices (voice) |
| Dave Fouquette | ... | Additional Voices (voice) |
| Dave B. Mitchell | ... | Additional Voices (voice) |
| David Lodge | ... | Additional Voices (voice) |
| Debra Wilson | ... | Additional Voices (voice) |
| Ethan Sawyer | ... | Additional Voices (voice) |
| Gerald C. Rivers | ... | Additional Voices (voice) |
| Gideon Emery | ... | Tal'darim Executor (voice) |
| Grey Griffin | ... | Additional Voices (voice) |
| Guerin Barry | ... | Additional Voices (voice) |
| Ike Amadi | ... | Additional Voices (voice) |
| Imari Williams | ... | Additional Voices (voice) |
| Isaac C. Singleton Jr. | ... | Additional Voices (voice) |
| Jamieson Price | ... | Additional Voices (voice) |
| Jim Miller | ... | Additional Voices (voice) |
| John DiMaggio | ... | Additional Voices (voice) |
| Jonathan Adams | ... | Additional Voices (voice) |
| Julianne Buescher | ... | Additional Voices (voice) |
| Karen Strassman | ... | Additional Voices (voice) |
| Kari Wahlgren | ... | Additional Voices (voice) |
| Marc Worden | ... | Additional Voices (voice) |
| Mark Mintz | ... | Additional Voices (voice) |
| Maury Sterling | ... | Additional Voices (voice) |
| Max Mittelman | ... | Stone (voice) |
| Misty Lee | ... | Additional Voices (voice) |
| Neil Kaplan | ... | Additional Voices (voice) |
| Patrick Pinney | ... | Additional Voices (voice) (as Pat Pinney) |
| Paul Eiding | ... | Additional Voices (voice) |
| Peter Giles | ... | Additional Voices (voice) |
| Rachael MacFarlane | ... | Additional Voices (voice) |
| Robert Torti | ... | Additional Voices (voice) |
| Robin Atkin Downes | ... | Additional Voices (voice) |
| Stephen Stanton | ... | Mal'ash (voice) |
| Sumalee Montano | ... | Additional Voices (voice) |
Rest of cast listed alphabetically: |
| Charlet Chung | ... | D.Va (voice) |
| Marqus Kane | ... | Fenix Win'thar |
| Kiff VandenHeuvel | ... | Additional Voices (voice) |
| Anna Graves | ... | Dominion Officer (voice) (uncredited) |