as Colonel (his Skinnie rank) by the Roughnecks. After enlisting with SICON, T'Phai studied human languages so he won't require a Talk Box. T'Phai is considered a father figure since he had a wife, who was also in the military, and two children. He believes in fighting a war so that his children would not have to share his fate. SICON (SICO) Commander Marlow (voiced by Thomas Wagner) – Commanding officer of the Valley Forge, the starship to which Alpha Squad is initially assigned. Old-school fleet officer who was looking forward to retirement before the Bug War began. General Miriam Redwing (voiced by Irene Bedard) – Former flame of Lt. Jean Razak, and friend of Sgt. Charlie Zim; now a General at SICON Headquarters. A compassionate yet stern career officer. Sky Marshal Sanchez (voiced by R. Lee Ermey) – Top military brass of the SICON Forces. Has demonstrated a willingness to sacrifice civilian lives if he believes it will help achieve victory. Note that the Sky Marshal in the novel was female, unusual for a 1950s SF novel. Lt. Earl Walker (voiced by Michael Harrington) – Intelligence officer who has an uneasy relationship with Razak and the Roughnecks. Seems to value intelligence data more than the human beings under his command who have to collect it. At one point, Walker was willing to ensure that Razak's military career would end during General Miriam Redwing's supposed disappearance being unaware of Redwing and Razak's sting operation against a mole within the SICON ranks. During the Homefront campaign, Walker and Razak along with their squads put aside their differences and befriend each other. Walker is not seen after Razak's death except for taking command of his squad fighting elsewhere during the conflict. C.H.A.S. (Cybernetic Humanoid Assault System) (voiced by Ed Hopkins) – A prototype combat robot with state-of-the-art weaponry, armor and artificial intelligence. CHAS joined the Roughnecks for a single mission during the Tophet Campaign, at the end of which he sacrificed himself to save Higgins and the rest of the squad. Audio commentary by the production crew has stated that the C.H.A.S. units cost a lot of production resources. Although they do appear later as bridge guards and combat but are easily dispatched by the Zander bug. Drill Instructor/Sergeant Charlie Zim – (voiced by Clancy Brown) Rico's and Flores' Drill instructor, who joins the Roughnecks during the final stages of the Homefront