Tessy Moerenhout ( Humbeek , January 25 1952 - February 25 2011 ) was a Flemish actress. She studied drama at the Royal Conservatory in Brussels including Nand Buyl and Leo Dewals as her teachers. When watching TV Vlaanderen she is best known for her role as Betty typist Bosse Colleagues . This role she played in a season. Halfway through season two, she left the series. For the film 's Colleagues Making the bridge when she came back Betty. Also in the Pleintje the series with a lot of the same actors as Colleagues , she was back in action, this time as Millie Bers, the shopkeeper. In 1979 she played the title role in the BRT series Mary Speer Malie . In 1995-1996 she was Maria Onckeloms in our happiness . In addition, she played several guest roles in such Kotmadam and Witse. In the theat