* The "Carry On" film series: In this case, you would need to specify which actors you're asking about. There were many actors who appeared in these films, and some are still alive, while others have passed away.
* A specific stage production: If you are asking about a particular "Carry On" stage production, we would need to know the name of the production and the cast list to determine how many actors are still alive.
Please provide more context to your question so I can help you find the answer.