Random Girl

The Random Girl is a girl Nightwing (back in Robin's costume being called Robin) saved in Episode 7: Nightwing Returns. She gave Nightwing her phone-number after she was rescued, because she fell in love with him. She reappeared in Episode 9 when The Computer showed Lego Batman a file of crimes happening in Gotham city. She appeared once more as one of the girls at Bat Girl's party, but in a cameo.

Trivia

 * The girl is the first person to give Nightwing a phone-number. It is unsure whether they went out, but probably not, because Robin knocked himself out (Nightwing could only remember what happened before becoming his own hero).
 * The girl appeared in many random cameos, like her cameo in The Lego Batman and Spider-Man Movie.
 * Her name might be Jessica or Ashley, as revealed in episode 10.

Quotes

 * "[Bieber] is so hot!"
 * "Thanks for saving me."
 * "Here's my number, call me?"