"An interesting fella by the name of Constantine?" Yeah, Doc is calling what he witnessed 'interesting' until he finds a better descriptor.

"Henry will do me fine." Or 'Hank', for something even shorter. He was briefly called those things. Doc plays his cards close to his chest on the first date, but give him a few days and he will give Raylan his other names.

"It was my father's name, actually." So, not his last name then. "But I am happy to bear it."