Natalie Redfern

Natalie Redfern was a researcher at Planet 3. She occasionally helped Sarah Jane Smith during her investigations. She found information about the teenager drowned in the river. She was looking for information about the break in at Biogard. (AUDIO: Test of Nerve) She was worried when Sarah wouldn't return her calls.

She trained as a forensic pathologist and went to Florence. She told Josh that she often went to see someone on the same day every year. She went away after Luca Parenti was killed after betraying them.

She helped Sarah whilst she went to Will Sullivan's funeral. She later accompanied her to Nevada.