Yes, they were. According to Stockard Channing, Jeff Conaway insisted that they be real. Conaway played Kinicke.
Edward Cullens
Betty Rizzo (played by Stockard Channing)
Stockard Channing
The character's name is Rizzo, played by Stockard Channing in the film Grease. She is known for her tough and rebellious attitude, short black hair, and smoking habit.
Rizzo was the leader of the Pink Ladies in the film Grease. She was portrayed by the actress Stockard Channing.
Stockard Channing is a film, theatre, and television actress. She is most famous for playing Rizzo in the film adaptation of the musical Grease, her performance in the film Six Degrees of Seperation, and her roles on The West Wing and The Matthew Shepard Story.
Her real name is Stockard Channing. Except for Grease she has also starred in The West Wing as Fist Lady Abbey Bartlet.
An amazing film; the best I have ever seen! To answer your question it was Elizabeth Berridge. (I think she looks like Stockard Channing who played Rizzo in Grease!)
I presume you mean the actress, Stockard Channing. She is very much alive and a well respected actress with many awards to her name. One notable role was the President's wife in the West WIng.
Mary Rizzo's birth name is MaryRyan Rizzo.
Marty (Dinah Manoff), Frenchy (Didi Conn), Jan (Jamie Donnelly), and Rizzo (Stockard Channing).