Is Dan based in Atlanta? Back in the day, he probably had to live there. Although since the '90s a lot of voiceover work can be done from anywhere.
Yes, I believe so. Maybe not Atlanta proper, but somewhere close to it.
It appears that he has been in Florida or Georgia for much of his professional life. I don't know why I didn't think to look before, but he does have an
IMDb profile.
Under "View Résumé" it indicates that he was a student of the University of Miami when he got his first acting roles in the '60s TV series "The Everglades" which was filmed in South Florida. He then got the recurring role of Warden Dennis in the classic TV series "Flipper"—also shot in the Miami area. Linked to his IMDb profile is this
episode of "Flipper"; if you jump to 16:00, you can see Dan Chandler circa 1964. I'm sure there are lots more clips that can be dug up.
If you look at the movies and TV shows in which Dan appeared, they were nearly all filmed in Florida up through about 1980, and those after were filmed either in Atlanta or fairly close by in the South.
Beyond the Atlanta-based work for TWC, his agent is listed as being in Atlanta, and his résumé also lists theatre work in 1999, 2008, and 2011—all in Atlanta.