Jeremy Piven will take part in the 100 Year Challenge, supporting a fund-raising initiative to mark the centenary of World War I.
The Entourage star can choose between skydiving or abseiling later this year to raise money for the cause, and all the proceeds will go to the Arboretum.
“I feel honored to have been asked to support a charity that I feel so strongly about. I wanted to do more to honor these brave service men and women, so I didn’t hesitate to get behind the 100 Year challenge and I’m very much looking forward to taking part,” Piven said.