43+ Best Photos of Michael Gross. Michael gross is best known for the roles of burt gummer in the tremors movie series and as steven keaton in the hit 80s series family ties. At the 1984 olympics in los angeles, gross became the first . Michael gross is a research chemist at the california water science center. Michael has 15 jobs listed on their profile. View michael gross' profile on linkedin, the world's largest professional community.
