Status: Deceased Died: 2012 Doug Penhall's first impression was one of muscle over mind. On the job though, Penhall proved to be the heart of Jump Street. Whether as the other half of the McQuaid Brothers or working back up at the Rocket Dog (the hot dog joint Penhall dubbed "the attack dog...because 20 minutes later..."), Penhall was an invaluable partner to Hanson. Always quick with a joke, Penhall could give the impression that his demeanor masked a deeper sadness perhaps even with a family tragedy seen in later seasons. Hanson and Penhall became best-friends.