|Introduced||Valley of Darkness|
|Death||KIA, Valley of Darkness|
|Portrayed by||Garvin Cross|
|Collishaw is a Cylon|
|Collishaw is a Final Five Cylon|
|Collishaw is a Human/Cylon Hybrid|
|Collishaw is an Original Series Cylon|
Private Collishaw is a Marine on Galactica. He is part of the fire team that rescues Captain Lee Adama during the early stages of a Cylon Boarding action. He stays with Captain Adama for the rest of the siege and is killed near the end, at Aft Damage Control (TRS: "Valley of Darkness").