Danny never recovered from two strokes he had earlier this year. If you watched the Smurfs, he provided the voice for Brainy Smurf for about 14 years (on the Smurfs and on Robot Chicken). Looks like the steady show-biz work is doing voice-overs. You won't get paid Olsen-twin money, but at least no one gives a damn about your looks or when you get old or fat. Just continue to provide the voice(s) they want. Also worked as a casting director for many years.
In Young Frankenstein he's the medical student who initially pissed-off Gene Wilder by 'mispronouncing' Dr. Frankenstein's last name (according to Gene lol). He then passively-aggressively bugs the hell out of Gene with questions.
https://www.cnn.com/2020/04/14/enter...bit/index.html