His Christian name (well, for a given value of Christian) is Ariel Kaltenbaum.

"It's as real as my face, sir, and a great deal prettier. Did you ever see a finer tosser in your life?" he replied, opening his trousers and exposing a tremendous prick, which was already in a half-standing state. "It's my only fortune, sir; but it really provides for all I want, and often introduces me to the best of society, ladies as well as gentlemen. There isn't a girl about Leicester Square but what would like to have me for her man, but I find it more to my interest not to waste my strength on women; these clandestine games pay so well[...]"