Packaging
The Painkiller is believed to be inspired by the fallen angel from the Sad Wings of Destiny album cover that Judas Priest recorded early in their career. He also makes an appearance along with the Hellion (from Screaming for Vengeance), the goggled face from Killing Machine (Hell Bent for Leather in the US) and the Metallian (from Defenders of the Faith) on the cover of Metal Works '73-'93.
A very similar character is on the cover of Angel of Retribution, also a metal angel, but with a slightly less smooth appearance and with the Judas Priest cross on his chest rather than on his shoulders.
The most noticeable feature of the Painkiller, besides his metal body is that he 'rides the metal monster'; a motorcycle with a dragon for the chassis and two circular saw blades for wheels.
Read more about this topic: Between The Hammer And The Anvil