Lady Tara Thornfield (also Cockburn and Lady Oakwell) is a fictional character from the British soap opera Emmerdale, played by Anna Brecon. She made her first on screen appearance on 31 July 1997. She remained on and off in the show until departing on 4 January 2002 for a new life with Sean Reynolds, whom she later married, but made a brief return with step-son, Marc (Anthony Lewis), in 2007 for her father-in-law Len's funeral.