I thought Lillian's dad was her husband too.
I looked up the ages of the actors on IMDb and Peter Coyote is 72. Marg is 55, Debra Mooney is 66 and Josh is 44. I know what you mean about Hollywood making people seem younger. It makes a nice change that Gabriel's mum looked quite old.
I loved the episode! Great scenes between Gabriel and his mum and Gabriel and Riley.
It was so cute to see how Gabriel's mother treated him. He asked her to make some tea.
I don't like Mei Chen but her character is interesting. I can't believe that Riley let her leave the house!
So many shocks.
I loved the ending. That was such a surprise, I didn't even remotely guess it.