She played Maya Lahan, a regular character introduced in the ninth series of BBC One drama "Spooks" which broadcast from September 2010. She guest starred as the evil Colonel Karim in "The Sarah Jane Adventures" in October 2010. Rouass then joined the cast of the BBC medical drama "Holby City", appearing from February 2011 as registrar Sahira Shah. She left "Holby City" on 17 April 2012, after just 14 months on the show, to take a break to spend time with her family. The door has been left open for her to return. Her return was later announced in January 2021 and she returned on 9 February.