But how do we even know if Tom's real name is even Tom or that Tom's, or whoever he really is's, picture is really a picture of a Tom named Tom Bishop? Not to mention, how did he get younger before he died? Have we found the real reptilian?
I think you are missing the point.
If you showed me a picture of some other Tom Bishop 30 years from now, aged exactly as you'd expect a 50 year young stud like our Tom Bishop to age, then I'd think you had a point.
The point is that given any combination of name and face, there is a decent chance of finding a similarly named lookalike (assuming their name isn't too rare and matches their ethnicity). It took me about 30 seconds to find TWO. If you want an example with a 30 year age difference, you would need to start with someone much younger than Tom Bishop, since there just aren't many people in their 80s - 90s.
Unfortunately, lacking proper training or good recognition software, this a subjective. You are just going to keep insisting that any example I provide isn't close enough, while exaggerating the identicalness of the Challenger lookalikes.