Liam Tigh

	; An ultrasound of Liam Tigh 4 months into Caprica-Six's pregnancy (TRS: "Deadlock").
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Human Name	Liam Tigh
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Death	c. 4 ACH (2003BYR) (4 months into pregnancy)
Parents	Caprica-Six (mother) ; Saul Tigh (father)
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	Liam Tigh is a Cylon
	Liam Tigh is a Final Five Cylon
	Liam Tigh is a Human/Cylon Hybrid
	Liam Tigh is an Original Series Cylon

Liam Tigh was the name of the unborn child conceived by Saul Tigh and Caprica-Six ^{(TRS: "Sine Qua Non")}.

Colonel Tigh calls his unborn son Liam, after his best friend William Adama. This was also his choice of name for a son when he and Ellen were still trying to have children.

After the Thirteenth Tribe on Earth wiped themselves out, Liam would be the first pure blood Cylon born (as opposed to being built) in over 2,000 years. However, four months into Caprica's pregnancy, the fetus dies due to a miscarriage ^{(TRS: "Deadlock")}.