It appears that Professor James Gellar (played brilliantly by Edward James Olmos), is not a real character on Dexter and is just an apparition made up by Colin Hanks.
About Murtz
Murtz Jaffer is the world's foremost reality television expert and was the host of Reality Obsessed which aired on the TVTropolis and Global Reality Channels in Canada. He has professional writing experience at the Toronto Sun, National Post, TV Guide Canada, TOROMagazine.com and was a former producer at Entertainment Tonight Canada. He was also the editor at Weekendtrips.com.
