Battlestar Galactica

Season 4 Episode 8

Sine Qua Non

5
Aired Friday 10:00 PM May 30, 2008 on Syfy
8.3
out of 10
User Rating
487 votes

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Episode Summary

EDIT
After President Roslin's disappearance, Admiral Adama is reluctant to recognize Tom Zarek as the new president. Lee realizes that his father will never accept Zarek so he seeks the assistance of attorney Romo Lampkin in finding another candidate. Meanwhile, Adama continues the search for the missing Cylon base ship, and President Roslin.moreless

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Edward James Olmos

Edward James Olmos

William Adama

Mary McDonnell

Mary McDonnell

Laura Roslin

Katee Sackhoff

Katee Sackhoff

Kara "Starbuck" Thrace

Jamie Bamber

Jamie Bamber

Lee "Apollo" Adama

James Callis

James Callis

Gaius Baltar

Tricia Helfer

Tricia Helfer

Number Six/Caprica Six

Mark Sheppard

Mark Sheppard

Romo Lampkin

Guest Star

Alexandra Thomas

Alexandra Thomas

Hera Agathon

Guest Star

Michael Hogan

Michael Hogan

Saul Tigh

Recurring Role

Richard Hatch

Richard Hatch

Tom Zarek

Recurring Role

Rekha Sharma

Rekha Sharma

Tory Foster

Recurring Role

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Trivia, Notes, Quotes and Allusions

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