Azrael
Jean-Paul Valley, Michael Lane, and all others

Batgirl
Cassandra Cain, Stephanie Brown

Batman
Bruce Wayne, Jean-Paul Valley, Dick Grayson

Birds of Prey
Barbara Gordon (as Batgirl and Oracle), Huntress, Black Canary, Manhunter (Kate Spencer), others
Catwoman
Selina Kyle, Holly Robinson

Nightwing
Dick Grayson (includes his time as Robin), Jason Todd (as Nightwing only)

Red Robin
Tim Drake (including his time as Robin)
Heroes and Villains (anyone else)
Jim Gordon & the GCPD, Jason Todd (Robin, Red Hood), Damian Wayne (Robin), Batwoman, Joker, Harley Quinn, Penguin, Bane, Riddler, others