Background
Harder was born in East Berlin, and grew up in East Germany, completing her abitur.
Harder was born in East Berlin, and grew up in East Germany, completing her abitur.
She then sat tests for the civil service in Berlin, before being cast in Gute Zeiten, schlechte Zeiten and deciding on a career as actress. Harder played the role of Florentine "Flo Spira" Spirandelli di Montalban in the television series Gute Zeiten, schlechte Zeiten from 1996 to 2002. She played the role of Sarah Hermann in Berlin, Berlin from 2003 to 2005, and the role of Valerie Kopp in Alles außer Sex from 2005 to 2007.
She played the role of Polizeimeisterin Franziska "Franzi" Jung in the series Notruf Hafenkante from 2007 to 2010.
Following the death in 2009 of Veronika Neugebauer, Harder took over the role of Gaby Glockner in the audio drama series TKKG.