Kira-Theresa Underberg (born 6 May 1985 in Hamburg, West Germany) is a German actress and radio play talker.
On January 16, 2008 she joined the daytime soap opera Verbotene Liebe in the contract role as Lydia Brandner.
Theresa played the role for three years and left the series when she decided to move back to her hometown Hamburg.
However Theresa continued her work as an actress and made her big screen debut with a role in the comedy What a Man, starring next to actor Matthias Schweighöfer.
After a guest appearance in SOKO Köln, Sat.1 gave Es kommt noch dicker a series order.