A self-centred, arrogant, sulky teenager, Jool (full name Joolushko Tunai Fenta Hovalis) has a scream that can melt metal, and hair that changes colour according to her mood.

Interon in race, she was on a grand tour, part of her education, when her ship was hijacked. All aboard were frozen and sold halfway across the galaxy as forced organ donors. She and her cousin were brought on board Moya by Crichton, but only she survived defrosting.

Finding herself on a renegade ship, far away from her home planet, and with all her relations dead, Jool did not deal with the situation well � whining, and throwing screaming fits. With nowhere else to go, she�s managed to make herself useful on Moya with her medical and scientific skills. Her undoubted intelligence wins her few friends, though, as she just won�t stop banging on about how smart she is.

Right from the start, Chiana detested her. As Jool got closer to D�Argo, finally entering into a relationship with him, the relationship between the two girls has got increasingly strained. Violence sometimes results, wearing everyone�s nerves very thin.

Key episodes: Self Inflicted Wounds Part 1, Self Inflicted Wounds Part 2, Losing Time, Revenging Angel.

Read our actor profile of Tammy McIntosh.