The only work I have ever seen of Tim Choate was in B5, but I enjoyed it. He took what would easily be one of the most annoying characters in the history of television, and made him into an entertaining and even endearing character. I enjoyed his performance.
I trying to search for B5 discussion threads as I wanted to make a few comments. I just finished watching War Without End, Parts 1 & 2, and, well... wow. And Zathras was in these episodes. I couldn't help but think he's everything Jar Jar wasn't. A much belated RIP.