After the disappearance of Lucifer, Harrington is in Crowley's former lair with several other demons as they argue about what to do. Suddenly, the Prince of Hell Asmodeus arrives and announces that he is in charge until Lucifer returns. Asmodeus calls forward Drexel, Harrington and Sierra before smiting the rest of the demons in the room. Harrington later watches as Asmodeus explains to Drexel about his attempt to release the Shedim.
While Asmodeus takes Jack to release the Shedim, he leaves Harrington and Sierra to kill the Winchesters and Donatello Redfield. After killing Sierra, the Winchesters find Harrington pinning Donatello up against a wall, about to stab him to death. As Harrington turns to look at the Winchesters, Dean throws an angel blade through his neck, killing Harrington. Dean's throw impresses Donatello and Sam while Dean comments that housekeeping will not be pleased to have to clean up the mess the fight left.
Powers and Abilities
Harrington appeared to be a regular low-level demon with all the powers of one.
- Demonic Possession - As a demon, he needed a vessel to walk the Earth.
- Immortality - As a demon, he would never age or die unless killed.
- Invulnerability - As a demon he was invulnerable to normal methods of harm.
As a regular low-level demon, he possessed all the weaknesses of one.
- High-Tier Demons - He was subservient to and weaker than higher ranking demons such as the Prince of Hell Asmodeus.
- Angel Blade - Dean was able to kill Harrington with an angel blade.