John H. Tobin played the Eagle Rangers' Leader in the episode Access. He was not credited for the role.
He also appeared in The Master (with Amy Adams, Bill Blair, Shawn Crowder, Ariel Felix, Franklin Dennis Jones, Brady Rubin and Laura Dern) and Zodiac (with Philip Baker Hall, Paul Schulze, Barry Livingston, Thomas Kopache, John Hemphill, Michael Edward Rose, J. Patrick McCormack, Cazimir Milostan, John Carroll Lynch, Ted Garcia, and John Getz).