Not the Shamwow guy ... he's a bit too slick. Too much the shyster. Besides, he was recently arrested for beating-up his girlfriend, so his marketing days are probably numbered.
Somebody smooth, but not slick. A instantly likeable young man. The kind of guy you'd like to see your daughter with. And he's got to be an unknown, because HE'S going to be the new face of GO800. He could probably be found at any high-end coffee shop, gazing into his laptop.
Seriously, Ike needs to consider this, as he has an image problem. The world is attracted to youth, and their seemingly uncanny knowledge of gadgetry. Ike doesn't fit the bill in that regard. Let the young guy pitch the product and Ike apply the funds.