Birth Name: Matthew Richard Stone
Place of Birth: Houston, Harris, Texas, U.S.
Date of Birth: May 26, 1971
*Ashkenazi Jewish (mother)
Matt Stone is an American actor, animator, writer, director, producer, singer, and songwriter. He co-created the series South Park, and also starred in and produced the films Orgazmo and Team America: World Police, all along with Trey Parker.
Matt is the son of Sheila and Gerald Stone. His father had Irish ancestry. Matt’s mother is Jewish (her family was from Russia). His parents have the same first names as Kyle Broflovski’s parents on South Park.
Matt is married to Angela Howard, who was a Comedy Central executive. They have two children.
Matt’s maternal grandfather was Julius Braslawsky/Belasco (the son of Max Braslawsky/Broslawsky and Elizabeth/Lizzie Braslawsky/Belasko/Balasky). Julius was born in Pennsylvania, to Russian Jewish parents. Elizabeth was the daughter of Louis Braslawsky/Braslausky and Yetta Dumar.
Matt’s maternal grandmother was named Rebecca “Betty” Laboda.
Sources: Genealogy of Matt Stone (focusing on his mother’s side) – https://www.geni.com
Matt’s maternal grandfather, Julius Braslawsky/Belasco, on the 1910 U.S. Census – https://www.familysearch.org