Dr. Liesl Obrecht is a fictional character on the ABC soap opera General Hospital. She is the sister of socialite, Madeline Reeves and the mother of Dr. Britt Westbourne and Det. Nathan West. She has been portrayed by actress Kathleen Gati since the character's debut on August 24, 2012. She helped Cesar Faison hold Robin Scorpio-Drake and Duke Lavery captive.