 Robert DonavanGeneral Saunders | General Saunders |
| MMichael StarkBruce Wallace | Bruce Wallace |
| AAlena NovotnaQueen Alien | Queen Alien |
 Sandra SanchezViceroy Alien | Viceroy Alien |
 Gerald BrodinSenator Toynbee | Senator Toynbee |
| KKristin NovakDenise Johnston | Denise Johnston |
| SSteven ManSenator Nick Lennon | Senator Nick Lennon |
 Jenae AltschwagerAgent Simone Lewis | Agent Simone Lewis |
| JJeremy GilbreathJosh | Josh |
 Chriss AnglinMI6 Agent Taylor | MI6 Agent Taylor |
 Renee DarmientoScarlett Rose | Scarlett Rose |
 Chanel RyanMichelle Freeman | Michelle Freeman |
| CChristina CaporaleKatie Saunders | Katie Saunders |
 Jessica McClainGlory Stevens | Glory Stevens |
 Brendan ConnorTodd Stevens | Todd Stevens |
 Ed BrigadierProfessor Timothy Wells | Professor Timothy Wells |
| LLeo AdamsAgent Vaslov | Agent Vaslov |
| AAlexander SchottkyDr. Frederick Von Quinterk | Dr. Frederick Von Quinterk |
| CCarl LundstromAgent Smith | Agent Smith |
 David WurawaAgent Davidson | Agent Davidson |
| SShaun KurtzFBI Agent Costello | FBI Agent Costello |
| CCristofer SandersProfessor Nevile Hopkins | Professor Nevile Hopkins |
| PPeter AndrewsAgent Williams | Agent Williams |
| DDiego ConteAttorney Larris | Attorney Larris |
 Elissa DowlingAlien | Alien |
 Vendula BednarovaAlien (as Vanessa Cooper) | Alien (as Vanessa Cooper) |
 Sandra De MarcoAlien | Alien |
 Daria GlowerAlien | Alien |
 Veronika VanozaAlien | Alien |
 Andrew AguilarDriver | Driver |
