Sebastian Cabot - Raymond Burr

A few times while watching Kismet I had turned away and was doing other things and realized Sebastian Cabot when he's not speaking in his 'proper' type english, sounds very much like Raymond Burr - or vice versa.

Interestingly, when I've noticed voices with same qualities the people in question almost always have the same physiognomy, I wonder what a voice analyzer would show in these cases i.e. how close are the actual vocal tonal qualities.