Again: how is this different than watching Lost, if we cannot trust the evidence the show gives us?
I just noticed something from the first season—
In Season 1 episode 8, about 8 minutes in — on the morning after the rave at which Luther gets lucky, Klaus calls a family meeting.
Klaus has made a fresh pot of coffee in a cafetière/ French press And Five complains about the quality of coffee. Dude! I make coffee that way every day. It must be a hundred times better than doughnut shop coffee.
Second, Klaus pours a cup for Ben!
From S1E1 (at 26:37):
Reg: Our world is changing; has changed. There are some among us gifted with abilities far beyond the ordinary. I have adopted six such children.
They know that there are others like them in the world. He says “six” and not “seven” because he has just (yet again) told Vanya that there is nothing special about her.
But there’s no way around the fact that they all know there are more people like them.
The rest of them not knowing of the other children is a real incongruity. Luther, Diego, and Klaus not knowing means nothing, they are idiots. Allison and Vanya would know because of the fiction that Vanya had no powers. For opposing reasons they both would have been curious about about other such children.
Did Five know about this though? He’s no idiot, and he’s been around for a long time, and had access to the commission data.
All of the children (except Vanya) are right next to Reg as he says the quote I provided.
Well then, they have some ‘splainin’ to do.
They know (or should) that there are people with powers. Hell, Five took down a talking fish. That doesn’t mean they know they were all born on the same day as them. Reg’s statement doesn’t actually say that.
And we already know Reg is an alien from the S1 scene with the disappearing dying lady (not Grace) and all the rocket ships taking off, before he is shown to arrive in our world.

I just noticed something from the first season—
In Season 1 episode 8, about 8 minutes in — on the morning after the rave at which Luther gets lucky, Klaus calls a family meeting.
Klaus has made a fresh pot of coffee in a cafetière/ French press And Five complains about the quality of coffee. Dude! I make coffee that way every day. It must be a hundred times better than doughnut shop coffee.
Second, Klaus pours a cup for Ben!
Another one for Klaus - about halfway through S2 he comments that Texas is “lousy with cowboy ghosts”. In the last episode when he is thrown into the air, he is caught by…a couple of random cowboy ghosts.

And we already know Reg is an alien from the S1 scene with the disappearing dying lady (not Grace) and all the rocket ships taking off, before he is shown to arrive in our world.
I didn’t think that scene necessarily established that, especially since both he and “dying lady” appeared human.
My thought at the time was that he was a human from a parallel universe.
With all of the time travel, the thought occurred to me in watching the second season that he might be a human from a far future Earth, who had gone back in time to guide the timeline to avert the planetary catastrophe that destroyed the planet in his timeline.

They know (or should) that there are people with powers. Hell, Five took down a talking fish. That doesn’t mean they know they were all born on the same day as them. Reg’s statement doesn’t actually say that.
Yeah, there’s two different sets. One is “extraordinary people” and one is “43 kids born on the same day to non-pregnant women.” The show makes it explicitly clear in the last episode that they didn’t know about the second set. I don’t see any other way of interpreting that scene.

And we already know Reg is an alien from the S1 scene with the disappearing dying lady (not Grace) and all the rocket ships taking off, before he is shown to arrive in our world.
Speaking of this scene, I have a theory. And please, no comic book spoilers if it’s already answered there. Anyone else think that Reg “created” the children (which would mean he’s actually their father). During that scene, he opens up a jar which has a bunch of floating lights in it, which fly off into the air. We see similar lights coming out of Vanya and going into Harlan when she saves him.
That would explain why he even knew in the first place that these kids all randomly born on the same day would have powers.

During that scene, he opens up a jar which has a bunch of floating lights in it, which fly off into the air.
I thought that was the remains of Abigail - proof that they weren’t actually human, in that SciFi “energy being” bullshit way.

I didn’t think that scene necessarily established that, especially since both he and “dying lady” appeared human.
So do Kryptonians. Which was what I immediately thought of.
Sure, I didn’t mean that I thought he definitely wasn’t an alien, just that we didn’t “already know Reg is an alien” from that scene. That scene clearly establishes he’s not from our Earth, but, I think going by that scene alone, the idea that he was a human from a parallel universe or from the far future were just as plausible.
Of course, now we’ve got the revelation that apparently he’s an only vaguely humanoid in a human suit, and, as others in the thread have pointed out, that Season 1 scene doesn’t really make sense anymore.
It’s probably down to the writers making stuff up as they go along and not paying much attention to continuity. But, here’s my fanspec to make sense of that scene with what we now know about Reg’s true form:
He’s an alien that’s been trapped on Earth, possibly for much longer than we’ve seen so far. He’s trying to guide both human technological evolution and biological evolution* to get humans to the stars. The Season 1 scene is Earth, in the future, not Reg’s native planet, after humans have achieved both technological and biological transcendence, and are leaving for the stars, but a future in which Reg is still concealing his true form.
*I’m using “evolution” in this case in the sense that Star Trek often mangles it, as teleological progress towards transcending physical forms and becoming energy beings.

Sure, I didn’t mean that I thought he definitely wasn’t an alien, just that we didn’t “already know Reg is an alien” from that scene. That scene clearly establishes he’s not from our Earth, but, I think going by that scene alone, the idea that he was a human from a parallel universe or from the far future were just as plausible.
Humans don’t tend to turn into glowy clouds of fireflies when they die. If they’ve evolved that far, I’m happy calling them “aliens”, too.
And Reg’s outward form seems to age somewhat (but not at a normal human rate), and that scene is the youngest we see him looking.
The scene does say “long ago”

Humans don’t tend to turn into glowy clouds of fireflies when they die. If they’ve evolved that far, I’m happy calling them “aliens”, too.
Fair enough.
The point remains, though, that he looked human in that scene. Until the Season 2 reveal, as far as we the viewers knew, whatever Reg was, he was at least outwardly indistinguishable from a human, not a Cthulhuoid horror in a human suit. That S1 scene just doesn’t make much sense given the later reveal - why were they wearing human suits?
Cosplay?

We know that the person in the autopsy report was (likely) a regular human. It still leaves open the possibility that the person autopsied was not Reg.

Again: how is this different than watching Lost , if we cannot trust the evidence the show gives us?
He uses a body-double in S2, so it’s not completely out of left field if the dead body in S1 was also a double.
I just realized I don’t know how allays came back from Vietnam. When he landed in the 1960s, didn’t he break his briefcase?
He hid the briefcase when he got to Vietnam. He broke the briefcase when he got back to the future.