Spike (occasionally referred to as Butch or Killer) and Tyke are fictional characters from the Tom and Jerry series, created by William Hanna and Joseph Barbera. Spike is a stern but occasionally dumb British bulldog who is particularly disapproving of cats, but a softie when it comes to mice, and later, his son Tyke. In the shorts Jerry would often try to get Tom in trouble with Spike making him a shoo-in for a beating from the bulldog. Spike has a few weaknesses that Tom tries to capitalize upon: his possessiveness about his bone and his ticklishness.