See Also: 'The Expanse' Episode Guide

Paramount Pictures yesterday announced the guest cast line-up for the Enterprise season finale, which marks the return of several recurring characters.

Vaughn Armstrong will make his twelfth appearance as Starfleet head honcho Admiral Forrest in "The Expanse", StarTrek.com reported. He will be joined by Gary Graham, who returns as the Vulcan Ambassador Soval, most recently featured in "Cease Fire".

Enterprise's old enemy, the genetically modified Suliban, will also be back to cause trouble. John Fleck returns as Silik in his first appearance since "Shockwave, Part II", together with his regular stooge, the mysterious Humanoid Figure (aka "Future Guy"), played by James Horan.

As if the superior Vulcans and slimy Suliban weren't enough for Archer and crew to deal with, the Klingons are also set to make a comeback. Daniel Riordan will reprise his role as Duras from last night's "Judgment", with Dan Desmond as the Klingon Chancellor. Desmond replaces Peter Henry Schroeder as the Klingon leader, the latter having played the role in "Broken Bow".

Several new characters will also be featured in the episode:

• Serena Scott Thomas as Rebecca
• Gary Bullock as Council Member
• Bruce Wright as Dr. Fer'at
• Josh Cruze as Captain Ramirez
• David Figlioli as Klingon Crewman #1
• L. Sidney as Klingon Crewman #2
• Jim Lau as Maitre d'

Serena Scott Thomas is the sister of Academy Award-nominated actress Kristin Scott Thomas (The English Patient). A former model, her credits include a recurring role on Nash Bridges and guest appearances on Buffy The Vampire Slayer and The Agency. Scott Thomas also played Dr. Molly Warmflash in the James Bond film The World Is Not Enough.

Two guest cast members are no stranger to the Trek franchise. Gary Bullock previously appeared as Goth in Star Trek: Voyager's "Rise", while Bruce Wright played Serish in the Star Trek: Deep Space Nine episode "Crossfire".

Josh Cruze's credits include NYPD Blue, ER and Alien Nation: The Udara Legacy; David Figlioli guest starred on The X-Files and Charmed. L. Sidney also appeared on Charmed; Jim Lau has featured in episodes of Firefly and Providence.

The original information is available here at StarTrek.com. "The Expanse" will air May 21 on UPN.

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