Bertram van Munster, the show's co-creator and executive producer, balked when CBS cast Big Brother refugee Alison Irwin and her boyfriend Donny in the fifth season. (The team ended up being eliminated in the second episode). But he relented on Survivor's sweeties. "Audiences know these people really well. And they wanted to be on the show in a big way," van Munster says, "so we went along and did it."