I worked with Danny on an excellent production (not bragging: I was just the b.o. treasurer) of THAT CHAMPIONSHIP SEASON. Brilliant actor, lovely man. He went on to so many amazing performances, I wouldn't even try to list them. (But Spike Lee's DO THE RIGHT THING was surely a career highlight!)
Alas, Fort Lauderdale wasn't ready for heavy drama in the summer months in the mid-1970s, but the actors (also including George Dzundza and Larry Pressman) were consummate professionals night after night in front of mostly empty seats. My staff and I attended almost every performance just because we thought such fine work deserved our support.