The cast list.
Why does the cast list on IMDb list David, Anne-Marie and Harrison as being in only 5 episodes?
I have seen both seasons many times, and I'm fairly sure they were in more than just 5 episodes.....either that or my DVD player was messed up and kept repeating the same 5 episodes over and over.
Imagine there's no heaven.
It's easy if you try.
God is an imaginary friend for adults.