I actually think people are confusing names and faces--I think Erik from P90X has short dark hair and a prosthetic leg, and people are thinking the Erik from STS resembles a guy named Fifer (or something like that...), but they're confusing the names. Not that that made any sense! Still, I'm thinking the answer is "no", but we'll see
I don't think it is the same Erik. That Erik was pretty lean - this one has nice mass on him. I think I have fallen in love with Greg though (LOL!!!)
The workouts are so P90X like. Maybe tad improved but the concept is the same. Muscle confusion.
Every time I decide I am not going to purchase the series, Cathe gives me reason to. Now I just have to purchase it if I want to get to know Greg! LOL!!!
I believe the Erik in PlyoX is Erik Stolhanske who is actually a comedic actor. He appeared in Broken Lizard's Club Dread (IFC plays it occasionally), Super Troopers, and Beer Fest.