Jeska was the commander of the Movellan prime ship. She ordered the attack on the Dalek ship and later oversaw the operation on Kembel to get Davros. She was tracing the Tenth Doctor and Anya Kingdom on behalf of the First Movellan. (AUDIO: The Dalek Defence)
She later took the Doctor to the First Movellan and the was a guard at the creation of the Dalek-Movellan alliance.[statement unclear] She later checked that Davros' virus was purged from the systems. The First Movellan asked her to find all information they had on the Kaled Mutant to develop the virus. (AUDIO: The Triumph of Davros)