what is the number of main character actors on Ocean's Eleven in spanish

Before you guess or are told the correct answer, be aware that Danny Ocean was one of the eleven.

so the number of characters is 12?

You seem to have trouble reading English.

". . . Danny Ocean was one of the eleven."

so the correct answer in spanish would be once

Right.

also, what is the number in two dozen?

http://www.helloworld.com.es/english/LearnSpanish/LearnSpanishNumbers.htm