Vincent Kartheiser

Kartheiser in 2011, photo by Prphotos.com
Birth Name: Vincent Paul Kartheiser
Place of Birth: Minneapolis, Hennepin, Minnesota, United States
Date of Birth: May 5, 1979
Ethnicity: German, Polish, Finnish, Swedish, Luxembourgish
Vincent Kartheiser is an American actor. He is married to actress and model Alexis Bledel, with whom he has a son.
Vincent’s maternal grandfather was Glenn Raymond Gruyè (the son of Raymond Charles Gruyè and Florence Eleanor Anderson). Glenn was born in Minnesota. Vincent’s great-grandfather Raymond was the son of Adam Gruyè and Mary/Marie Reimer.
Vincent’s maternal grandmother was Dorothy Rose Dehn (the daughter of Andrew Anthony Dehn and Stella Louise Richter). Dorothy was born in Minnesota. Stella was born in Błonie, Poland, the son of Stanley Richter and Anna Petrowski.
Sources: Genealogy of Vincent Kartheiser (focusing on his mother’s side) – http://worldconnect.rootsweb.ancestry.com
Obituary of Vincent’s maternal great-grandmother, Stella Louise (Richter) Dehn – http://archives.ecmpublishers.info
I found an article that mentions his father being from Chicago. That makes me think that his grandparents might be Ralph Edward Kartheiser and Margaret Mary Lilly.
https://www.familysearch.org/tree/person/details/LY9N-W32
https://www.familysearch.org/tree/person/details/G43Z-V1X
He looks extremely Polish.