Ramsey

Ramsey was the oldest hellhound.

History
Ramsey was one of the first hellhounds created by God. However, God found them too vicious and decided to "put them all down". Lucifer managed to rescue Ramsey, who was pregnant at the time, and from her, the hellhound species continued.

Season 12
In Somewhere Between Heaven and Hell,

Powers and Abilities

 * Invisibility - Like most hellhounds, Ramsey was invisible, forcing Sam and Dean to rely on Hellhound Glasses in order to see her.
 * Super strength -

Trivia

 * Ramsey is the second female hellhound, and the second named hellhound to appear on the series, after Juliet.