Criminal Minds Guest Stars (120 person items)
"James MacDonal as Detective Wally Dennison
Episode/s: 1 Episode
First Appearance - 12/02 "Profiler, Profiled"
Last Appearance - 12/02 "Profiler, Profiled"
When Morgan is arrested for presumably murdering three young boys Dennison helps the BAU and Gordinski with the investigation. He truly believes that Morgan might be guilty and that his partner is doing the right thing.