Jodie Foster as future Commissioner Barbara Gordon
Tig Notaro as Alfred's successor
Kristen Schaal as annoying and entitled grown-up brat Damian Wayne
Wanda Sykes as Gotham's Mayor
Nicole Byer as Oracle (not familiar with her tbh)
Thomas Middleditch as Jason Todd
Maria Bamford as the Joker's daughter
Nick Offerman as handsome manbear Dick Grayson
...
Shit, that leaves us with Hillary Swank as Cass.
Alright, forget it.