You know I was wondering when they choose certain actors for a particular role that uses alot of rage, do they automatically think of Roger Davis? Because in just about every show I've seen him in he's always ready to murder someone and is ranting & raving like there's no tomorrow! I just saw him in Matlock the other day and as usual he was full of rage and grabbing people by the throats! These kind of roles must be "normal" for him.
You know, Cassandra, it just hit me all of a sudden while reading your post, (even though I've thought about it a lot lately), that I bet this has a lot to do with his agent. I would guess that it's the agent's job to know what roles best suit his client. And for the agent to seek out scripts with said roles and offer them to his client for consideration. This could explain why we see RD in such similar roles, over and over and over and...lol.
I wonder if this could be considered a form of type-casting?
dom