Bulldog

A bulldog was a breed of dog from Earth.

Jim Purcell had a bulldog called Bernard. Jim used his dog to intermediate visitors but he seemed very calm towards his owner. In 2011 when his owner was abducted he didn't seem to pay attention an care. When his owner reappeared he did't show any change in his behaviour he just licked Jim has Jim hugged him. (TV: Night Terrors)