I was honored and lucky to have met Kevin Conroy at a local comic convention show several years ago thanks to my buddy who owns the company Celebworx. They bring in special guest appearances from TV, animation, movies, voice actors etc. to conventions in the nation.
One of their clients was Kevin Conroy who happened to be at the show. I think it was the Stan Lee LA convention in downtown LA. I managed to get my Batman:Animated Series master DVD set signed by him and Lorin Lester (voice of Robin). It was one of the best days for me in a comic convention.