Revealing mistake: In the scene after the fire, when Kyle is playing with a candle, as he picks up the candle his belly button is visible. It has been established that Kyle has no belly button, therefore this is a mistake.
Continuity mistake: Lori and Declan are making up - the wall behind them changes from a brick wall to a wall made out of porous concrete as the light goes back on. (00:40:05)
Plot hole: When Mr. Ballentine is telling Emily about her assignment, he sets the blue folder down near his side of the desk before he gets up. Then we see Emily pull it across the table and quickly peek in it. When Ballentine turns around, the folder is still close to Emily, which shows that she at least tried to look in it, yet Ballentine says nothing about it no longer being in the spot where he set it down. If Emily thought that it was okay for her to look in the folder, she wouldn't have waited for Ballentine to turn around before she touched it.
Continuity mistake: In the bathroom scene, Andy's hat keeps changing position between shots. Her hat position interchanges between showing all of her forehead to none of it.
Revealing mistake: When they shine light through the Zyzzx ring, Kyle walks in front of it, but the map is still visible on the wall. Meaning that it's either added in editing or the light shines from another source.
Answer: Yes, he is the one wearing the Fedora Hat. Look for him in Season 1 Episode 4.