Rassilon's next audio appearance comes in "Desperate Measures", concluding the ninth series of Big Finish Productions spin-off "Gallifrey". During the Time War the Time Lord Valerian (David Sibley) becomes a host through whom Rassilon is resurrected to lead Gallifrey. These events will lead into the tenth series of the spin-off where the part will be played by Terrence Hardiman. This season ends with Romana attempting to arrange as assassination to stop his dictatorship, ending with Rassilon beginning to regenerate. The series ends on a cliffhanger as he uses his regeneration as a propaganda opportunity.