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Maren Jensen, Lorne Greene, and Richard Hatch in "Battlestar Galactica" (1978-1979) / Edward James Olmos, Jamie Bamber, and Katee Sackhoff in "Battlestar Galactica" (2004-2009)

LEFT: BATTLESTAR GALACTICA - Gallery - Shoot Date: June 12, 1978. (Photo by ABC Photo Archives/ABC via Getty Images) MAREN JENSEN;LORNE GREENE;RICHARD HATCH

RIGHT: BATTLESTAR GALACTICA -- SCI FI Channel -- Pictured: (l-r) Edward James Olmos as Commander William Adama, Jamie Bamber as Capt. Lee Adama (Apollo), Katee Sackhoff as Lt. Kara Thrace (Starbuck), Grace Park as Lt. Sharon Valerii (Boomer) -- SCI FI Photo: Frank Ockenfels

Battlestar Galactica Stills