Psychos Guest cast, played by Alastair Galbraith Episode 1x01: Episode 1 (May 6, 1999) Episode 1x02: Episode 2 (May 13, 1999) Episode 1x04: Episode 4 (May 27, 1999) Episode 1x05: Episode 5 (Jun 3, 1999) Episode 1x06: Episode 6 (Jun 10, 1999)