Lt. Muldoon

"I put two in his heart, one in his computer."

- Muldoon explaining how he killied Osama Bin Laden Lt. Muldoon is the main antagonist of the 2007 American zombie film directed by Robert Rodriguez Planet Terror.

He was portrayed by Bruce Willis who also portrayed Old Joe and The Jackal.

In the movie Muldoon is first seen with his men at an US military base in Texas making a business transaction with a chemical engineer named Abby for mass quantities of a deadly biochemical agent known as DC2 (codename "Project Terror"). When Muldoon learns that Abby has an extra supply on hand, he attempts to take Abby hostage, and Abby intentionally releases the gas into the air. The gas reaches the town and turns most of its residents into deformed bloodthirsty psychopaths, referred to as "sickos" by the surviving humans. The infected townspeople are treated by the sinister Dr. William Block and his unhappy, unfaithful bisexual anesthesiologist wife Dakota at a local hospital.

Muldoon is not seen until he and his men capture the survivors group where the protagonists are, then the group learn from Abby that the soldiers are stealing Abby's supply of the gas because they are infected with it and the only treatment is by constant inhalation of the gas, which delays mutation. They also learn that a small percentage of population is immune to the gas, suggesting a possible treatment, which is why Muldoon quarantined the survivors.

As Cherry (the movie's main protagonist) and Dakota are taken away by a soldier called Lewis and another of Muldoon's soldiers(Quentin Tarantino and Greg Kelly), the others defeat the security guards and search for Muldoon. Discovered by El Wray (the movie's secondary main protagonist) and Abby, Muldoon explains that he killed Osama bin Laden before he and his men were infected with DC2 and were ordered to protect the area, while telling this Muldoon's gas supply runs out and he starts mutating, El Wray offers a respectful recognition of Muldoon's military service before he and Abby shoot the mutating Muldoon to death.