ALFRED PENNYWORTH
Cons: “Jig’s up, dirtbags!” doesn’t sound quite as imposing with British accent; wouldn’t have anyone to serve him cups of tea and little sandwiches, stitch up his wounds, exchange sarcastic banter with; kind of a pussy (compared to Batman)
COMMISSIONER JAMES GORDON
Cons: Bum ticker; smell of pipe smoke will give him away when he’s trying to be stealthy; not exactly the worlds’ greatest crime fighter, which is why he relies so heavily on Batman in the first place
DETECTIVE HARVEY BULLOCK
Cons: May have difficulty fitting into Batman costume, Batmobile cockpit, secret entrance to the Batcave, etc.; gets winded easily
MAN-BAT
Cons: Keeps shredding costume when transforming; “Batman-Bat” or “Man-Batman” might be a bit of a mouthful; will have to fight temptation to eat/drink the blood of the criminals he apprehends
PLASTIC MAN
Cons: Not grim and gritty enough; doesn’t do gray
BAT-MITE
Cons: Will have trouble filling out costume; probably the least physically-imposing person or animal to ever dress up in a bat-costume; can’t reach the pedals of the Batmobile