“Here’s The Big News!! Look what I’m doin!!” Lewis wrote on Instagram Tuesday, alongside a picture of her with Galecki and Sara Gilbert, as well as an image of her holding a script from the show.
A spokesperson for ABC confirmed Galecki’s return as David, an ex of Sara Gilbert’s Darlene, for the spinoff and said that Lewis will be playing Blue — his girlfriend who was referenced on the first (and last) season of the “Roseanne” revival last spring.
The romantic interest casting might give some “Christmas Vacation” fans a chuckle, as the two played brother and sister, Audrey and Russell Griswold, on the Chevy Chase-led 1989 comedy.