There is plenty of discussion about who the beast is, when he is and where he is..or will be. There seems to be a definite time when the beast will appear. For example he doesn't seem to get a mention til Rev 13. and his mark is then mentioned in chapter 13,14,16.19 and 20. Never before chapter 13. The beast only has seven heads, yet throughout history there have been way more than seven candidates for beast-hood. Probably starting with Nero, ranging up to Hitler, Mussolini, Gadaffi and probably any and every other bad guy. These have been political /military figures, but there have been a number of religious people who have had the honor of being considered as beast candidates too. There have been too many suggestions that the Popes are the beast or the Antichrists but that is nonsense and I sincerely ask that people refrain from making such allegations. It may be that the beast will try to operate out of a Christian religion at some time in the future, maybe a protestant, southern baptist mega Church, whatever, but until and unless that happens it is not good to make baseless allegations.