In the cliffhanger Season 3 finale, "Crossroads, Part II", he, along with Samuel Anders, Saul Tigh, and Tory Foster become aware that they are Cylons, based on hallucinatory music (which turns out to be a cover of "All Along The Watchtower" written by Bob Dylan) that only they can hear, and a "switch" Tyrol believes has gone off within them.
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Tyrol's speech urging the union to strike shortly before the occupation begins is based on Mario Savio's "gears of the machine" address at the University of California, Berkeley.
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In the Netflix "Watch Instantly" streaming version of the series finale, Tyrol's decision to settle on an island is omitted.
Tyrol | South Tyrol | Tyrol (state) | County of Tyrol | Galen | county of Tyrol | Galen Weston | German Tyrol | Galen Rowell | Galen Rupp | Galen Gering | East Tyrol | Landtag of South Tyrol | John Galen Howard | Tyrol (state) | Tyrol 1809 Order of Battle | Tirol, South Tyrol | Tyrol (region) | Tyrol | Transport of concentration camp inmates to Tyrol | North Tyrol | Mariastein, Tyrol | Laas, South Tyrol | Galen Tyrol | Galen Strawson | Galen Kelly | Galen Cisco | Galen B. Jackman | Freedom Party of South Tyrol | Citizens' Union for South Tyrol |
He is joined by new parents Chief Tyrol and Specialist Cally, former Galactica crewman Jammer, and Caprica resistance fighter Jean Barolay.