Birth Name: Seamus Patrick Dever
Place of Birth: Flint, Michigan, U.S.
Date of Birth: July 27, 1976
Ethnicity: German, Flemish Belgian, possibly French and other
Seamus Dever is an American actor. He is known for his role on the show Castle.
He was raised mostly in Bullhead City, Arizona. He is married to actress and travel blogger Juliana Dever.
Seamus is a second cousin, once removed, of Canadian singer, songwriter, and guitarist Feist. Seamus’ maternal great-grandparents, Martin John Fulton and Sophia Margaret Borsch, are also Feist’s paternal great-great-grandparents. Seamus is also said to be related to actress Jeanne Arnold.
Seamus’ maternal grandfather was Robert Rollin Roock (the son of Edward Henry Roock and Christina Gross). Robert was born in New York. Edward was born in New York, the son of John Roock and Catharine Eiseman. Christina was born in New York, the daughter of Charles August Gross, who was German, and of Anna, who was an ethnic German from Russia.
Seamus’ maternal grandmother was Helen Rose Fulton (the daughter of Martin John Fulton/Falton and Sophia/Sophie Margaret Borsch). Helen was born in Illinois. Martin was born in Illinois, the son of John Fulton, who was born in France, and of Mary Cecilia/Celia VanEmelen, who was born in Louisiana, to Flemish Belgian parents. Sophia was born in Illinois, the daughter of August Borsch, who was German, and of Anna Maria Pfeiffer, who was also of German origin.
Source: Genealogy of Seamus’ maternal grandparents, Robert Rollin Roock and Helen Rose Fulton – http://www.familysearch.org