How many playable characters are in LEGO Batman: Legacy of the Dark Knight?
7 playable heroes: Batman, Jim Gordon, Catwoman, Robin, Batgirl, Nightwing and Talia al Ghul. Each one has unique gadgets that gate puzzles.
There are 7 playable characters. Batman starts unlocked; Jim Gordon joins in Chapter 1 (Docks); Catwoman in Chapter 2 (Shreck's); Robin in Chapter 3 (Haly's Circus); Batgirl at the start of Chapter 4 (Gotham Museum); Nightwing at the end of Chapter 4 (Mr. Freeze boss); Talia al Ghul in Chapter 5 (after Tumbler Chase). Robin remains playable after Nightwing unlocks. Each character has unique abilities — e.g. Batgirl's Hackarang, Nightwing's Electrorang, Talia's Ninja Dash — that gate specific puzzles and free-roam activities.