Born in 1983 along with his twin brother, Christian Cousins, Joseph Cousins began acting at the young age of four as Bobby Ewing on the soap opera "Knots Landing". He and his brother shared the role, as they did many throughout their childhood as screen actors. He appeared on a total of 13 episodes of the show, which led to many more parts for the in-demand twin actors. Joseph appeared alongside Arnold Schwarzenegger in Ivan Reiman's huge hit "Kindergarten Cop" in 1990, and later in the feature films like the creature feature "Critters 3" and the family comedy "Twin Sitters". He also put in appearances in a number of television programs, including appearances on the priest-cum-private investigator crime drama "Father Dowling Mysteries" and the spooky children's horror show "Eerie, Indiana". In 1994 he returned to his roots for the mini-series " Knots Landing: Back to the Cul-de-Sac", where he reprised his role as Bobby Ewing. After this, Cousins walked away from television at the age of 14.