Ingrid Oliver

After coming to prominence as part of the comedy double act Watson & Oliver, Ingrid Oliver appeared in four episodes of Doctor Who from 2013 to 2015 as Petronella Osgood. She has returned to play UNIT’s capable scientific advisor on audio dramas numerous times since, beginning with 2015 box set UNIT: Extinction. Oliver’s other recent screen credits include Netflix thriller miniseries Run Away, Sky Atlantic’s dark comedy Sweetpea, and mystery movie The Thursday Murder Club.