Which specific child actors are you asking about?

One can find a list of famous actors from the following sources; iMDb's list of most talked actors of 2012, Forbes' Celebrity 100, and listal's American actors and actresses.

There is no such thing as a child protection list. You may be referring to the sex offender registry which is designed to help inform people of dangerous offenders in there area.

Yes, see the encyclopedia of Bollywood actors.

A list of the hottest actors in Hollywood is published every year by People magazine. These actors are voted to the list by readers of the magazine. Similar lists are published for other celebrity professions and for both men and women.