As an actor, I've often felt he's just shown up, done his lines, and moved on. Mostly he's been used for fill in roles.
Having more time on my hands I've been able to watch cable again and see some random movies I'd blown off the first time. This morning's flick was "Meet Joe Black" An interesting film with a fairly strong cast. My opinion of the film is on gold as I find myself writing this entry during the love scene. It was poignant and poetic, but I really feel like the director could have done more with the scene.
I started writing because Tambor has a scene with a supporting actor where the emotion for the scene can only be described as golden. I may have to reconsider his work.