Several Babylon 5 cast members confirmed he was a chain smoker, and would only stop smoking when cameras were rolling. They said this was his only bad habit, and was otherwise a dream to work with, and was almost always in a jovial mood on-set, and treated everyone with great kindness and respect, getting along quite well with almost everyone. In fact, he and Peter Jurasik (who played his on-screen rival, Londo Mollari) got along so famously, and had such incredible chemistry on camera, their scenes were often the easiest to shoot, rarely needing more than one or two takes to complete, and the two veteran actors' performances together were often hailed as some of the best of the series.
