The Alberts (father and son).

[Falcon Crest I]

Unfortunately they were not, in the same season i.e. Edward (Jeff Wainright) and Eddie (Carl Brock/Carlton Travis). Might have been interesting though had they been, in a scene(s) together.

 

[Angela Channing]

I didn't know they were father and son. I never made the connection even though I knew they shared the same surname.

 

[Chase Gioberti]

The younger was definitely creepy on the show