What if The Traitors reunited Gretel Killeen with Merlin Luck? With Reality TV contestants in new 10 series, a TV reunion from 2004 would have been fascinating casting. But was there any thought to casting Merlin to bring the duo back together? I’m not involved in the casting,” Killeen tells TV Tonight. They’re really, really skilled at what they do, and I’m really in awe of that.”