Gran

Gran, whose real name is Dotty Burns, is Bertie and Suzy's grandmother and Bertie's father's mother. She has a husband called Stan.

Personality
Gran is very kind and likes children and animals, so she often lets Bertie do things that his parents wouldn't approve of, which Bertie likes.

She also likes romantic movies and dislikes horror movies, which Bertie dislikes.

She is very jovial, playful and energetic for her age, which causes Bertie to wonder if she's "bonkers".

She is afraid of fleas and likes bingo.

On Fridays, she visits for tea.

Apparently, she blames the cat when she farts.