How could I have forgotten my eternal crush... Anthony Stewart Head
While he's not just a charming older man... his voice... If you dont find him visually appealing, or for that matter if you do, check this out...
It's not the best song he's done by far, but its just a voice clip from Buffy the Vampire Slayer season 4 and this is one of the first songs I'd ever heard him sing which made me fall for him, so enjoy.