Karen Koster is an Irish-Dutch television presenter. She is seen on TV3 on Xposé.
She graduated from Trinity College, Dublin, in 2003 with a degree in English Literature and French.
In 2001, she was runner up in Raidió Teilifís Éireann's The Selection Box. She presented her own show on the City Channel before moving to TV3. She has presented on Xposé, a program on TV3, since Xposé launched in April 2007.
Before an interview with Bradley Cooper, Coster and Cooper engaged in close and awkward silence.