I mentioned Lassie the other day and got me wondering if June Lockart was alive or not. She played Dr Maureen Robinson in Lost in Space. She is 91. I noticed her daughter Anne Lockhart was also an actress so since it was wikipedia I clicked on it. She played Lt. Sheba in Battlestar Galactica (original series) for 11 episodes and became an important character. I never knew this.
Any other parent child combo who costarred in two different sf shows? Sisters I can think of the Cartwright sisters Angela (Lost in Space) and Veronica (appeared on XFiles for a few episodes and I think it was called Resurrection).