Two-Headed Demon (Blood Money)

This unnamed demon had two-heads and was capable of producing fire.

Background
Shortly after Angel fired Cordelia, Wesley and Gunn, Cordelia had a vision of the demon. In her vision, she described the demon to be massive, had two heads and was capable of breathing fire. Cordelia said that the demon was rising in the sewers beneath Kenyard School for Girls.

Characteristics
Upon closer inspection of Wesley and Gunn however, it turned out that the demon did not actually breathe fire, but produced it through some other means. Gunn pointed out that it almost filled the entire sewer system close to the height of twenty feet despite the demon crouching.