Ilya Lagutenko's birth name is Ilya Igorevich Lagutenko.
Ilya Khrzhanovskiy's birth name is Ilya Andreevich Khrzhanovskiy.
Ilya Kovalchuk's birth name is Ilya Valeryevich Kovalchuk.
Ilya Kravchunovsky's birth name is Kravchunovsky, Ilya Afanasyevich.
Ilya Lyubimov's birth name is Ilya Petrovich Lyubimov.
Ilya Kopalin's birth name is Ilya Petrovich Kopalin.
Ilya Kormiltsev's birth name is Ilya Valerevich Kormiltsev.
Ilya Ilf's birth name is Fajnzilberg, Ilya Arnoldovich.
Ilya Dyomin's birth name is Dyomin, Ilya Viktorovich.
Ilya Frez's birth name is Frez, Ilya Abramovich.
Ilya Trauberg's birth name is Trauberg, Ilya Zakharovich.
Ilya Tolstoy's birth name is Ilya Lvovich Tolstoy.