The actress left the show, which began on the CW network in 2019 and airs on E4 in the UK, after just one series.
Writing on her Instagram story on Wednesday, Rose posted a string of allegations of abuse, negligence and poor working conditions.
Warner Bros said it did not hire Rose for a second season after receiving complaints about her behaviour.
The company described Rose's account as "revisionist history... aimed at the producers, the cast and crew, the network, and the studio".
