Master Sergeant Frank Woods is a supporting character in Call of Duty: Black Ops, the deuteragonist of the 1980s missions in Call of Duty: Black Ops II, a main character in the 2025 missions, and a main playable character in Call of Duty: Black Ops: Declassified. Woods was part of the Studies and Observation Group (SOG) along with Alex Mason and Joseph Bowman. In Call of Duty: Black Ops II, he is mostly seen as an NPC, although he is playable in the level "Suffer With Me", and several missions in Call of Duty: Black Ops: Declassified. Throughout Call of Duty: Black Ops II, Woods appears as a narrator for several campaign missions, past and present.