"Another keeper: Ghost. Can't get over the name though. What the hell kind of name is Ghost?"
— John "Soap" MacTavish
Lieutenant Simon "Ghost" Riley is a British special forces operator, and a prominent member of Task Force 141, known for his iconic skull-patterned balaclava, headset, and dark red sunglasses.
Ghost appears as a main character in Call of Duty: Modern Warfare 2, Modern Warfare 2: Ghost, Call of Duty: Online, Find Makarov: Operation Kingfish, Call of Duty: Heroes, and Call of Duty: Modern Warfare 2 Campaign Remastered. He also appears as a customization option in Call of Duty: Ghosts. Ghost was also an unlockable character in Call of Duty: Mobile available after reaching Tier 1 of the Season 1 Premium Battle Pass.
"The healthy human mind doesn't wake up in the morning thinking that this is its last day on earth. But I think that's a luxury, not a curse. Knowing you're close to the end is a kind of freedom. Good time to take... inventory. Outgunned. Outnumbered. Out of our minds. On a suicide mission. But the sand and rocks here stained with thousands of years of warfare, they will remember us. For this. Because out of all our vast array of nightmares, this is the one we choose for ourselves. We go forward like a breath exhaled from the Earth. With vigor in our hearts and one goal in sight: We. Will. Kill him." — Captain Price before Just Like Old Times leaving the vocal record of their truth.
"I can still teach you a thing or two, old man."
— Soap to Price in "Blood Brothers".
Captain John "Soap" MacTavish was the deuteragonist of the Modern Warfare franchise, and also appears in Call of Duty: Heroes, as well as Call of Duty Online. He is the main playable character in Call of Duty 4: Modern Warfare and Call of Duty: Modern Warfare Remastered as a sergeant and special forces soldier, serving as the 22nd S.A.S. Regiment's sniper and demolitions expert, and Call of Duty: Modern Warfare 2 and Call of Duty: Modern Warfare 3 as a captain and the Field Commander of Task Force 141, along with Captain John Price with Sgt. Gary "Roach" Sanderson and Lt. Simon "Ghost" Riley under his command.
"Da - I know a place."
— Nikolai responding to Price at the end of Call of Duty: Modern Warfare 2.
"Nikolai" (Russian: Николай) was the code name of a Russian informant among Imran Zakhaev's Ultranationalists and an ally of the SAS in Call of Duty 4: Modern Warfare and Call of Duty: Modern Warfare Remastered. He continued to help MacTavish and Price in Call of Duty: Modern Warfare 2 and Call of Duty: Modern Warfare 3. His real name is not known.