Name the new one Adam.
From that link:
He looks like a shadow…
Luna
Pixel
Dumdum
Batman!
No? Okay, I vote for Joey or Oliver because those are the names of my fuzzy overlords and they have so far proven to be fantastic names for kitties.
Just don’t name him John Jacob Jingleheimer Schmidt.
That’s my name.
Sir Fuzzybottom Whiskerface, esq., Master of All He Surveys
He has boxing gloves on. Rocky. AKA Sir Rockford Huntington because he’s wearing a tuxedo and is probably always hunting for something.
Call him Bond. James Bond.
Kato
Bruce Lee’s masked character in the Green Hornet.
Lone. Or Ranger. Or Lone Ranger.
Or, going in a different direction, Rexfelis–the Cat Lord from Gary Gygax’s Greyhawk campaign setting.
Oswald Cobblepot. Name him Oswald Cobblepot!
Other than that, I gotta go with Walter. Anyone asks me what they should name a cat, I always say Walter.
Wow. That’s my name too.
Can’t see him since that site blocked, so don’t know if he’s really there, so Schrodinger might be good.
Or Phantom for the mask.
I’m going with Claxton. I’ve been trying to get someone to name their pet this for a couple of years, with no good results. Imagine that. 
Sorry but if he came with a name that is his name. Oh you can call him Percy or Skeelers or whatever you like but God knows his name is Kittyman and that is what it really is.
So don’t try to change him, love him, he loves you 
No, his name is my name too…
Ours turned out to be a girl cat, therefore Penguin. Not Oswalk Cobblepot. But it is a great name for a black and white cat.
Arthur.
Marcel