William Adama Sr.
|William Adama Sr.|
|Death||Euthanized by Joseph Adama (CAP: "The Dirteaters")|
|Children||Joseph Adama (son)|
Sam Adama (son)
|Marital Status||Married to Isabelle Adama†|
|Portrayed by||Aleks Paunovic|
|William Adama Sr. is a Cylon|
|William Adama Sr. is a Final Five Cylon|
|William Adama Sr. is a Human/Cylon Hybrid|
|William Adama Sr. is an Original Series Cylon|
|William Adama Sr. in the separate continuity|
|[[Image:|200px|William Adama Sr.]]|
During the Tauron Civil War, William and his wife Isabelle were members of the Ha'la'tha resistance. After a member of the Herac militia was killed outside their home (and William's son Sam stole his weapon), Herac soldiers killed Isabelle and tortured Joseph in their own home. William's son Joseph killed the Herac soldiers and then, at William's request, killed his father using the stolen handgun (CAP: "The Dirteaters").
Sixty-nine years before the Fall of the Twelve Colonies, Joseph named his first son after his father (CAP: "Caprica pilot"). After his first son's death in 58 BCH, Joseph and his second wife name their own son William (CAP: "Here Be Dragons", "Apotheosis").