The Clinic Guest cast, played by Melanie Clark-Pullen Episode 4x03: Episode 3 (Oct 15, 2006) Episode 4x04: Episode 4 (Oct 22, 2006) Episode 4x06: Episode 6 (Nov 5, 2006) Episode 4x07: Episode 7 (Nov 12, 2006) Episode 4x09: Episode 9 (Nov 26, 2006)