Greg Plitt, who had starred in two Bravo reality series and worked as a model, carpenter and fitness instructor, died Saturday afternoon after being struck by a Metrolink train in Burbank. He was 37.

Gregg Plitt Melanie MardenPlitt appeared in Bravo’s Work Out between 2006 and 2008, and will appear in three episodes of another just-premiered reality show for the network, Friends to Lovers, with his long-time friend, the fitness star Melanie Marden. Plitt’s first appearance is set to air in a few weeks.

According to police, Plitt and several friends were apparently shooting video at the train station by Burbank airport when he was struck by a passing Metrolink commuter train.

George Gregory Plitt Jr. was born in Baltimore, and was a graduate of West Point Military Academy.  Plitt was perhaps best known in Los Angeles as a fitness instructor. He had a number of acting roles, most notably in the 2013 boxing film Grudge Match, The Good Shepherd and Terminator Salvation. He also appeared as himself on the reality show Designed to Sell, and in three episodes of Days of Our Lives.

He recorded commercials for MTV, Under Armour and Gold’s Gym, and worked as a model for Calvin Klein, Thierry Mugler and Under Armour among other brands and media outlets.