Of course we watch Once Upon A Time and while I don’t think the current story arc holds a candle to what has been presented in the past come on who doesn’t like dalmatians? Anyhow in the episode “Sympathy for the De Vil” we get some of the back story for Cruella and her mother Madeline is played by Anna Galvin who graced Stargate SG1 in the episode Collateral Damage and then she was in the Atlantis episode Remnants and finally four episodes of Universe playing Mrs Armstrong.
Anna Galvin IMDB
Once Upon A Time IMDB & Official