Michael C Hall on death, dogs, depravity and Dexter: 'It was fantastic to be ethically unbound' Dexter The Guardian Michael C. Hall is a cancer survivor who was diagnosed with Hodgkin's lymphoma in 2010 while filming the fourth season of Dexter. Despite going through treatment, he kept working and even showed During Season 4 of Dexter, Michael C. Hall was quietly battling Hodgkin's lymphoma. He continued filming while undergoing chemotherapy, even wearing a wig in some scenes to cover his hair loss. Remember when they just put a floppy wig on 30 something year old Michael C. hall and said "ok you're teenage Dexter now"