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Santino Fontana as Greg Serrano
Greg is Josh's friend, and was attracted to Rebecca from the get-go. When he was in college at Emory, Greg studied business. His dad then came down with emphysema, so he decided to leave school to take care of him. Greg isn't the best when it comes to his own emotions-- he doesn't really know how to convey his own feelings, and often chooses the wrong time to spill the beans. (Getty)