Star Trek: Helena (season 5)

Season 5 of Star Trek: Helena

Plot
For five years the Grey have stalked the Federation as Starfleet has plumbed the depths of the Briar Patch, discovering the powerful and ancient tetrahedrons. Meanwhile, the inscrutable Xindi have stepped up their own incursions in Federation Space, bringing them to the verge of war with the Federation. ==Episodes
 * 31. "Entanglement, Part 2"
 * 32. "Imminent Danger"
 * 33. "Darkest Night"
 * 34. "Security Counsel"
 * 35. "Epitaph"
 * 36. "The Battle is Joined"

Main Cast
Zac Efron as Admiral Jason Tyson

Charlize Theron as Captain Susan Core

Bruce Boxletiner as Commander Elliot Samuels

Miley Cyrus as Lieutenant Commander Jamie Mitchell

Chris Evans as Lieutenant Howard Mason

Alyssa Milano as Lieutenant Junior Grade Elizabeth Leigh

Taylor Swift as Lieutenant Commander Julia Watson

Jensen Ackles as Lieutenant Commander Jones Jensen

Ariana Grande as Captain Jamie Franklin

Natalie Portman as Lieutenant Jane Kal

Liv Tyler as Dr. Samantha Tanner

Guest Stars
Amanda Tapping as Colonel Samantha Carter

Michelle Forbes as Vice Admiral Sasha Tyson

Cameron Diaz as Commodore Tarin Veal

Patrick Stewart as Captain Jean-Luc Picard

Daniel Craig as Captain Typhuss James Kira

Ben Browder as Captain John Tyson

Gary Jones as MSgt Walter Harriman

Richard Dean Anderson as Lieutenant General Jonathan J. O'Neill

David Hewlett as Dr. Rodney McKay

Torri Higginson as Doctor Elizabeth Weir

Julie Stran as Lieutenant Colonel Jenna Wilson

Joe Flannigan as Major John Sheppard