The rumours have suggested Cuoco and Robbie refused to take the stage together at Comic-Con in San Diego, California to promote their Harley Quinn projects - Robbie played the anti-heroine in "Suicide Squad" and this year's "Birds of Prey" while Kaley is the voice of Harley in a DC Comics animated show.
But the former "Big Bang Theory" star insists the story is nonsense, adding she has never even met Robbie.
"When Harley became kind of a big deal and then when Birds of Prey came out, there were all these stories that me and Margot Robbie were feuding," Kaley tells Interview magazine. "There was an article that came out that said we would not show up together at Comic-Con. We refused to be on the same stage together. Neither of us was even at Comic-Con, OK?"
Kaley went on to state she loves Margot and finds the Australian star "so cute."
She will reunite with original cast members such as Viola Davis, Jai Courtney, and Joel Kinnaman. Meanwhile, Idris Elba, John Cena, Sylvester Stallone, Peter Capaldi, and Pete Davidson are among the new additions.
While Robbie is returning for the soft reboot, Jared Leto who previously played her onscreen male interest Joker was snubbed. The infamous character was eventually played by Joaquin Phoenix in a new solo movie from director Todd Phillips.