S. Irvine

	[show/hide spoilers]; Spoilers hidden in infobox by default.
Age
Colony
Birthplace	{{{birthplace}}}
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Callsign	Flyboy
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Introduced	Scattered
Last Appearance	[[{{{lastseen}}}]]
Death	Killed by a Centurion, Valley of Darkness
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Family Tree	View
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Portrayed by	Michael Tayles
	S. Irvine is a Cylon
	S. Irvine is a Final Five Cylon
	S. Irvine is a Human/Cylon Hybrid
	S. Irvine is an Original Series Cylon

Flyboy is the callsign of a Viper pilot on Galactica. Under the command of Captain Lee Adama, and accompanied by Kat, Flyboy protects Adama as he attempts to destroy a Cylon Heavy Raider (Scattered). Flyboy can be very reckless, and jokes a lot in the cockpit, even in dire situations.

When Galactica is infiltrated by Cylon Centurions, Flyboy is among the first to happen upon the interlopers as their group attempts to make their way from the hangar deck. He is killed by a Centurion in the ensuing panic (Valley of Darkness).