The actor hit headlines in December (2018) after Eliza Dushku accused him of making inappropriate comments about her appearance, suggesting a threesome with another co-star, and making a rape joke in front of other cast and crew members after she joined the show as a guest star in 2017.
She confronted Weatherly about his remarks and soon learned her character, who had been due to become a series regular, was being written out of the series, according to The New York Times.
She took her complaints to network bosses at CBS, and ended up receiving a $9.5 million (£7.3 million) payout.
Weatherly denied having anything to do with Dushku's departure from the show, but subsequently apologised for comments he had made, which he acknowledged were "not funny and not appropriate".
Bull has since been renewed for a fourth season at CBS, but when it returns, it won't be made in collaboration with officials at Spielberg's Amblin Television company.
"Steven Spielberg, Amblin Television, Darryl Frank and Justin Falvey are no longer attached to Bull," a representative simple states to Deadline.
Spielberg, a big supporter of the Time's Up movement against sexual misconduct, had served as an executive producer on the show, alongside Frank and Falvey, for "Bull"'s first three seasons.