This character lives a double life, one respectable and one much more self-indulgent.

Jack
Algernon
Gwendolen
Cecily
Lady Bracknell

say correct answer do not guess and explain why

The correct answer is Algernon. This character lives a double life, one as a respectable gentleman and one as a self-indulgent man named Ernest. This is a plot point in Oscar Wilde's play The Importance of Being Earnest.