Katarina was a young Trojan woman, hand-maiden to the prophetess Cassandra, who found herself embrolied in the battle for Troy when the Greeks used a huge wooden horse to gain entry to the city, in twelfth century BC.

Assigned by the departing Vicki, to look after Steven Taylor, who had been hurt in a sword fight with a Trojan warrior, she assisted him back into the TARDIS, which materialized with her still on board, thus she become one of the First Doctor's companions (U). 

She was in awe of the Doctor and saw the TARDIS as his temple. Katarina deciding that the Doctor must be some kind of god. She was loyal and dedicated, with a firm belief in prophecy and spiritial matters.

She was held captive by a crazed criminal Kirksen in the airlock of Maverick Chens' Spar ship, which was piloted by Bret Vyon. Katarina understood that the Doctor would be forced to face the Daleks if he was to safely free her. Unwilling to let this happen, Katarina opened the ship's outer doors, expelling herself and Kirksen into space to die. Katarina sacrificed her life so that the First Doctor and Bret Vyon could reach Earth and alert it to the Daleks' Masterplan (V).

Adrienne Hill was born in Plymouth, England. After completing her training at the Bristol Old Vic, stated with the old Vic Company in London.  She then went on to spend eight years in varied repertory theater roles. 

Having been spotted by "Doctor Who" production assistant Viktors Ritelis while understudying for Maggie Smith in a play called "Mary, Mary", she was invited to audition for the role of Princess Joanna in "The Crusade" . Although she did not win that part, director Douglas Camfield remembered her and cast her as Katarina.

After appearing in "Doctor Who" she went on to have successful roles, especially on the radio, and landed a regular role in the BBC Radio's "Waggoner's Walk". She then moved abroad with her husband (Alan Rakof) when his work took him first to Holland and later to the USA.

In the late seventies, after her marriage broke up, she returned to England and studied for a degree. During the eighties she launched a new career as a drama teacher, while continuing to do occasional acting work.

Sadly Adrienne Hill died as a result on cancer, 6th October 1997.