News of Galecki's (who played David Healy) return comes after Sara Gilbert, who portrayed his onscreen wife, Darlene, told ET in September that he was poised to return.
"We're in very productive, amazing talks and we're hopeful that it will work out," Gilbert shared.
Cast members including Gilbert, Barr and Lecy Goranson then started sharing pics from set on social media last month.
Barr couldn’t be more thrilled to have her TV family back together, sharing how the reboot is a “dream come true” in another tweet posted on Tuesday.
“This 10th season of 'Roseanne' is just a dream come true for an old lady comic who fought so hard 2 honor working class ppl in America,” Barr wrote.