Abi Lerner

Abi Lerner was a medical officer aboard the S.S. Pentallian.

Biography
Abi conducted tests on Hal Korwin to see why Korwin would not open his eyes and why he was unconscious. The Tenth Doctor liked Abi because she already had done what he was about to say. She was the first victim of Korwin, then was possesed by the sentient star Torajii. (DW: 42)