Gabriel is one of the main antagonists (along with The Entity) of the 2023 spy action film Mission: Impossible – Dead Reckoning Part One. He will return in its upcoming 2025 sequel Mission: Impossible – Dead Reckoning Part Two.
He is a mysterious terrorist mastermind who serves as the liaison of the cryptic artificial intelligence known as the Entity and seeks to recover the key to its secret. He is also an old adversary of IMF agent Ethan Hunt and had a role to play in how he became the heroic secret agent he is today.