Oddly, my Nan was very similar to Grandad in "Only Fools and Horses".
Same sort of character, similar way of speaking, and she had always lived near to Peckham too.
One of my past managers was similar to Captain Mainwaring - not in appearance but again in his attitude, mannerisms and verbal delivery.
I have a friend who is like a combination of Foggy (Summer Wine) and Lennox-Brown (Men From the Ministry). In fact, those two characters could almost have been the same person anyway!