Frank Horrigan is a fictional character from the video game series Fallout. He is a former Secret Service agent who becomes a key figure in the game's storyline. Horrigan is known for his imposing size and strength, as well as his cybernetic enhancements, which make him a formidable opponent. In the game, Frank Horrigan serves as the primary antagonist in Fallout 2. He is a loyal enforcer for the Enclave, a powerful and corrupt organization. His character embodies themes of loyalty and betrayal, as he struggles with his past while carrying out the Enclave's ruthless agenda.