7 Famous Cairns. Currently, the Cairn Terrier Club of America, along with the Institute for Genetic Disease Control in Animals, maintains an open registry for Cairn Terriers in hopes of reducing the occurrence of hereditary diseases within the breed. Breeders voluntarily submit their dogs' test results for research purposes as well as for use by individuals who seek to make sound breeding decisions. George Lopez's family dog on the TV series George Lopez, is a Cairn Terrier named Mr. Needles, named by the son, Max, for the extremely high number of shots that the incredibly sick former stray received from the veterinarian.