The names X-Ray and Vav come from a couple of Achievement Hunter videos which Gavin and Ray were in. In one of these videos, Gavin jokingly asks Ray if anyone has ever nicknamed him "X-Ray". In another video, when Ray is introducing who is in the video, he accidently calls Gavin "Vav" instead of "Gav". This became a running gag between them until Gavin made a joke in another video about how X-Ray and Vav could be crime fighters and the Rooster Teeth community loved the idea.