FWIW, there's a character actor named Sebastian Roche who'd (IMO) be the ideal choice if there's ever a Gordon Ramsay biopic. Roche has small roles in lots of TV shows and currently is reprising his General Hospital role as villainous Australian, Jerry Jacks.
Funny, grey, a few months ago I watched The Crossing, a made-for-tv movie from 2000 about the Battle of Trenton, with Jeff Daniels as George Washington and Sebastian Roche as one of his right-hand men. (Pretty good movie, by the way. To bad the youtube video is of such poor quality). I mentioned to my husband a couple of times that Roche could be Ramsay's brother. Sounds like the resemblance has only gotten stronger with time.