Peter Silberman is a psychologist, and the only character to appear in the first three Terminator films (the Terminator is a different model of the same type in each film). He is played in all his appearances by Earl Boen.In the first Terminator, he is a Los Angeles criminal psychologist. He questions Kyle Reese and Sarah Connor when they are brought into the police station, and believes Reese to be insane. He leaves moments before the Terminator attacks the police station.In Terminator 2: Judgment Day, Silberman is a member of the staff at Pescadero State Hospital, and is still a psychologist, now specializing in mentally unsound patients rather than criminal psychology. He analyzes Sarah, trying to make progress with her (and he does have her best interests at heart), but he has little success and she has attacked him several times (and used him as a hostage once when he did not let her be transferred to minimum security). He witnesses both the T-800 and the T-1000 doing things impossible for normal humans to do, proving Sarah's story (which he mocked several times).In Terminator 3 he makes a short appearance as a post-trauma counselor with an LAPD SWAT team. He now attributes the Terminators he saw in Judgment Day to be hallucinations caused by trauma, though he has some self-doubt. When he sees the T-850 again, he flees the scene. He was originally scripted to be killed in a nuclear explosion, but was not.