Sebastian is an Associate Attorney at Glaser Weil Fink Howard Jordan & Shapiro, a litigation boutique. He was born and raised in St Albans in Hertfordshire, England, known for its deep Roman history. He met his wife there, and they married at St Albans Cathedral.

Sebastian and his wife moved to California in 2019, and they now who have two young daughters who love swimming in the ocean.

He thanks his sponsors Ed Mracek, Jordan Barbod and Wendy Urushima-Conn.