Christian Bale: Batman in Batman Begins, The Dark Knight, and The Dark Knight Rises
Christopher Nolan and Emma Thomas: director/producer/co-screenwriter and producer of Batman Begins
Sir Michael Caine and Katie Holmes: Alfred and Rachel in Batman Begins
Morgan Freeman and Gary Oldman: Lucius Fox and Det. Sgt. Jim Gordon in Batman Begins, The Dark Knight, and The Dark Knight Rises
Cillian Murphy: Jonathan Crane (Scarecrow) in Batman Begins, The Dark Knight, and The Dark Knight Rises
David S. Goyer and Charles Roven: co-screenwriter and producer of Batman Begins
Chris O'Donnell: Robin in Batman Forever and Batman & Robin
John Duncan: Robin in Batman and Robin
Neal Adams: Batman artist and co-creator of Ra's Al Ghul
Jeph Loeb: writer of Batman: The Long Halloween, Batman: Dark Victory, and Batman: Hush.
Marv Wolfman: writer of Batman: A Lonely Place of Dying and co-creator of The New Teen Titans
Tom Kenny: The Penguin on The Batman and Plastic Man on Batman: The Brave and the Bold
Ming-Na: Detective Ellen Yin on The Batman
Kristopher Carter, Lolita Ritmanis, & Michael McCuistion: composers for Batman: The Animated Series and the subsequent DC Tooniverse
More to come...