In the pilot episode, a yellow beetle car drives by, which is Emma Swan's car on Once Upon a Time. In the episode "Heart of the Matter," a black Mercedes drives by, which is Regina Mills' car on Once Upon a Time.
The Jabberwocky is not the name of the monster in Lewis Carroll's sequel to Alice's Adventures in Wonderland (Through the Looking Glass.) The monster itself is actually called just the Jabberwock.
It was initially reported that show would recast Sebastian Stan 's Mad Hatter due to his commitment to Marvel Cinematic Universe, but Edward Kitsis later revealed the next month that due to fan backlash and respect for Stan's performance, the character would not be recast and the series would proceed without the character.
When the Jabberwocky tortures her victims by reading their fears, their ears bleed.
Spinoff of Once Upon a Time.