Patrick played Johnny Cash 's father , Ray Cash , in the film '' Walk the Line '' and Elvis 's father , Vernon Presley in the miniseries '' Elvis . '' In 2003 , he appeared in Charlie 's Angels : Full Throttle , which reunited him with his '' Striptease '' co-star , Demi Moore . He had a regular role on '' The Unit '' , and played Elvis Presley in '' Lonely Street '' ( 2009 ) . In October 2006 , he starred in the WWE Films production '' The Marine '' as Rome . He also appeared in '' We Are Marshall '' as Marshall University head coach Rick Tolley , who lost his life when Southern Airways Flight 932 crashed in 1970 . His credits also include a guest starring role in the '' Lost '' episode " Outlaws " , as well as a recurring role as the voice of Master Piandao in Season 3 of the Nickelodeon animated series '' Avatar : The Last Airbender '' . Patrick played a supporting role in '' Firewall '' , a 2006 action movie starring Harrison Ford . He has also appeared in Meat Loaf 's music video " Objects in the Rear View Mirror May Appear Closer than They Are " with Will Estes
Southern Airways Flight 932
Southern Airways Flight 932
Robert Patrick