Seriously, keeps me awake nights.
Couldn't really enjoy this show as much as I might have, because the leading man's voice was so familiar, and it wouldn't come to me. I mean, of course, I'd seen him in other things, (loved the Horatio Hornblower series,) but he seemed to sound exactly like someone else. Timbre, diction, inflection, phrasing - everything.
Finally thought of it.