On TV we have a lot of unseen characters who are always mentioned, Maris, NIles wife in Frasier, Mrs Columbo, Her Indoors from Minder, She who must be obeyed from Rumpole Who else is there?
On 'Kenan & Kel' you never see Kels parents (so my kids inform me), and the store owner Chris always mentions his mother who is never seen ~ even the photographs of her in his apartment are obscured by plants.
Whickerman nicked my first thought of 'Ugly Naked Guy'.
actually i would have said the youngest Barclay, Eugene, but he did once make an appearance, I think, he was always away at college, jerrod, Nick , Audra and heath were always on about him though
It is a common misconception that "She Who Must Be Obeyed" was never seen.
Hilda Rumpole appeared umpteen times; played by Peggy Thorpe-Bates in 16 episodes of Series 1-3 (and the TV film "Rumpole's Return), by Marion Mathie in 24 episodes of Series 4-7 and by Joyce Heron in the BBC "Play For Today" pilot.