Mark Henry Hentemann is an American screenwriter, creator and producer for television and film. He is a writer, executive producer and former showrunner of the animated series Family Guy, where he started as a writer in its first season. In addition, Hentemann has also provided voices for many minor characters on Family Guy, including the "Phony Guy", Opie, and Eddie the Ostrich.Hentemann has also written for the Late Show with David Letterman, created the series 3 South for MTV, and also the animated series, Bordertown for Fox in 2016 on the network's Sunday Funday lineup, which Seth MacFarlane and he executive produced. He is currently working on a reboot of The Naked Gun franchise for Paramount. Hentemann is also a long-time real estate investor. Having moved to Los Angeles penniless in 1998, he began investing his script earnings into multifamily. He is founder of Quantum Capital, an investment firm.