Rhys Darby. Actor: Der Ja-Sager. Rhys Darby was born on 21 March 1974 in New Zealand. He is an actor and writer, known for Der Ja-Sager (2008), Flight of the Conchords (2007) and Radio Rock Revolution (2009). He has been married to Rosie Carnahan-Darby since 25 January 2004. They have two children.