Al and Al C: Successfully complete the Flashback scenario to make them available for 4,000 points.
Arnold U.B.C.S: Successfully complete the End Of The Road scenario in Very Hard mode to make him available for 5,000 points.
Austin: Talk to Austin in the Observation Deck scenario, then talk to Patric or Lloyd to make him available for 4,000 points.
Axeman and Al B: Successfully complete the Flashback scenario in Very Hard mode to make them available for 8,000 points.
Ben Bertolucci: Successfully complete the Desperate Times scenario to make him available for 3,000 points.
Carter: Successfully complete the End Of The Road scenario to make him available for 3,000 points.
Dorothy: Successfully complete the Flashback scenario with a "Good" ending to make her available for 5,000 points.
Fred, Andy, Jean, and Tony: Successfully complete the Desperate Times scenario to make them available for 5,000 points.
Kurt and Kurt B: Successfully complete the Flashback scenario with the "Truth" ending with Alyssa to make them available for 3,000 points.
Marvin Branagh: Successfully complete the Desperate Times scenario with Kevin to make him available for 4,000 points.
Ms. White, Ms. Peace, and Ms. Water: Collect all 260 SP items to make them available for 50,000 points.
Nathan and Samuel: Successfully complete the Desperate Times scenario in Hard mode to make them available for 4,000 points.
Patric and Lloyd: Successfully complete the Wild Thing scenario to make them available for 3,000 points.
Reagan and Reagan B: Successfully complete the Flashback scenario with an "Illusion" ending and the sub-quest to make them available for 3,000 points.
Rinda: Successfully complete the End Of The Road scenario with a "Good" ending to make her available for 4,000 points.
Rita: Successfully complete the Desperate Times scenario in Very Hard mode to make her available for 6,000 points.
Rodrigez U.S.S.: Successfully complete the End Of The Road scenario to make him available for 5,000 points.