Lena Headey Sarah Connor Actor Thomas Dekker John Connor Actor Summer Glau Cameron Phillips Actor Brian Austin Green Derek Reese Actor Richard T. Jones James Ellison Actor Garret Dillahunt Cromartie Actor Shirley Manson Catherine Weaver Actor Leven Rambin Riley Actor Busy Philipps Guest Star Stephanie Jacobsen Guest Star Chad L. Coleman Guest Star Drew Rausch Guest Star Theo Rossi Guest Star Chris Ellis Guest Star Yuri Lowenthal Guest Star Gregg Perrie Guest Star Erin Fleming Guest Star Krishna Cole Guest Star Mackenzie Brooke Smith Guest Star