In 1997, Queen Elizabeth II granted Joan the title of Officer of the Order of the British Empire (OBE).
Joan appeared on the December 1983 cover of Playboy at the age of 50.
By the end of Dynasty's run on television, Joan was making a whopping $120,000 per episode.
Joan was a great admirer of former prime minister, Margaret Thatcher.
Turned down Frank Sinatra, Robert F. Kennedy, Darryl F. Zanuck and Dean Martin.
She had affairs with Dennis Hopper, Arthur Lowe, Sydney Chaplin, Ryan O'Neal, and George Englund (Cloris Leachman's husband).
Refused to return to work on Dynasty (1981) at the beginning of the 1985-1986 season until she was given a raise, forcing the writers to write her out of the first episode of the season. It was a bold move on her part, because the previous season's cliffhanger was the infamous "Moldavian Massacre", in which all the characters were shot. It would have been very easy for the producers to fire her and eliminate the character of Alexis by having her being killed in the shootout. However, she successfully negotiated a raise to around $60,000 per episode and returned to work, missing only one episode.
Joan is allergic to shellfish.
Only appeared in 13 of 22 episodes during the final season of Dynasty (1981) because the producers told her they couldn't afford to pay her every week.
Once engaged to Warren Beatty.
The eldest of three children, she is the sister of famous novelist Jackie Collins.
Joan: Dynasty was the opportunity to take charge of my career rather than sitting around like a library book waiting to be loaned out.
Joan: According to my sister, the expert novelist Jackie Collins, most men stray. And sex doesn't mean anything to most men. But I wouldn't date a man who slept around. Absolutely not. I've divorced men for that.
Joan: Show me a person who has never made a mistake and I'll show you someone who has never achieved much.
Joan: Cosmetic surgery is the plain woman's revenge. I think everybody should do what they want to do, if they want to have lips like a trout, let them.
Joan: The thing about sex is you should have as much of it as you can.
Joan: You can't stop getting older, but you can stop getting old.
Joan: Loneliness is the universal problem of rich people.
Joan: People still want to talk to me about that Star Trek episode,some seem to remember me more for that than anything else I've done.
Joan: The easiest way to convince my kids that they don't really need something is to get it for them.
Joan: The problem with beauty is that it's like being born rich and getting poorer.
Joan: Age, in my opinion, has no bearing at all, that is unless, of course, one happens to be a bottle of wine.
Joan: I've never been that keen on Shakespeare.
Joan: After a certain age, you get the face you deserve.
Joan: I've never chased fame. I came into this business to be a theatre actress. I was nine when I first appeared on stage. But I can't say I would turn my back on fortune. I'm someone who enjoys the benefits of money. I created a lifestyle for myself. Nobody else did it for me. Everything I have I've bought with my own money.
Joan: I have always tried to live my life with enthusiasm and pleasure.
Joan: It is unseemly to undress on stage. I won't do that.
Joan: The secret of having a personal life is not answering too many questions about it.
Joan: The unfortunate statistics are that there are far more available and fabulous over 40 women than there are available and fabulous over 40 men.
Joan: I enjoyed being an adulteress, taking a certain vengeance for the fact that my husband was not being faithful.