His description of the video shares a little of what it was like to be onset:
#TBT to where you would find me on the HELLBOY sets when the camera wasn’t rolling on me during my 18 hour days as Abe Sapien. Minutes later, my head would be tilted forward, and I’d be out like a light. (Make-up by Spectral Motion, Slippers “borrowed” from Prague Hilton hotel, if you notice the logo).