Actor Billy Miller, known for The Young and the Restless and General Hospital, dies at 43 in Austin, Texas.

Manager reveals he was battling manic depression.

Miller's career started with All My Children in 2007.

Played Billy Abbott on The Young and the Restless from 2008 to 2014.

Earned three Daytime Emmys during his career.

Joined General Hospital in 2014 as Jason Morgan and Drew Cain.

Made appearances in Suits and Truth Be Told.

Notable film roles in American Sniper and Urban Cowboy.

Last role recorded on NCIS.

Colleagues and fans pay tribute to his infectious charm and talent.