Winston Zeddemore

Winston Zeddemore is a fictional character appearing in the "Ghostbusters" movies, TV series, and video games. He was played by Ernie Hudson in both movies and was voiced by Arsenio Hall in the first two seasons of "The Real Ghostbusters". 
Buster Jones provided Winston's voice in the remaining seasons, and he reprised the role in a cameo on "Extreme Ghostbusters". Hudson returned to provide his appearance and voice to Zeddemore in 2009's "".
Unlike the other Ghostbusters, Zeddemore is not a doctor and sometimes never appears with the group.