Nightwing (voice)

Nightwing / Dick Grayson (voice)

Caleb Jost (1 episode)

Paul (1 episode)

Dick Grayson / Nightwing (voice)

Dr. Abe Anderson

Joe

Dick Grayson / Nightwing (voice)

Nightwing / Dick Grayson (voice)

Sean Maher (3 episodes)

Dick Grayson / Nightwing (voice)

Jake (1 episode)

Nightwing / Dick Grayson (voice)

J.K.

Mark Scheffer / Shrapnel (2 episodes)

Don John

Paul (4 episodes)

Sean

Sean Beasley (2 episodes)

Marcus (7 episodes)

Sheldon (1 episode)

Aaron Cooper (1 episode)

Wilson / Jasper (1 episode)

Marcus Newsome (1 episode)

Ted Moore

Jack Whilton

Conor Donovan (1 episode)

Simon Tam

Kilroy

Carson Mackie (1 episode)

Simon Tam (11 episodes)

Brian Piccolo

Chris McConnell (12 episodes)

Adam Matthews (7 episodes)

(8 episodes)