ROSEANNE Barr has returned to Twitter to apologise to colleagues who lost their jobs following her "racist" tweet.

The actress, 65, has seen her show, Roseanne, cancelled after she compared former Barack Obama adviser Valerie Jarrett to an ape.

The comedian said: "Don't feel sorry for me, guys! I just want to apologize to the hundreds of people, and wonderful writers (all liberal) and talented actors who lost their jobs on my show due to my stupid tweet."

Barr apologised to Jarrett after comparing her to an ape.

She said: "I want to apologize to you. I am very sorry to have hurt you. I hope you can accept this sincere apology!"

Barr has continued to tweet about the cancellation of her show, writing: "Please don't start all of that boycott ABC stuff – I'm not a censor and they have the right to do what they wish. It' all ok. Thanks tho guys!"

She added: "I'm sorry 4 my tweet, and I will also defend myself as well as talk to my followers. So, go away if u don't like it. I will handle my sadness the way I want to. I'm tired of being attacked & belittled more than other comedians who have said worse."

She also said she had taken sleeping pills when she wrote the offensive tweet, writing: "Not giving excuses for what I did [tweeted] but I've done weird stuff while on ambien-cracked eggs on the wall at 2am etc."