Just when you thouhgt you'd got a handle on Hollywood's latest celebrity superchild - Johnny Depp's daughter Lily-Rose Depp - it turns out there's another kid flying the flag for offspring royalty.

Comedian and director Kevin Smith, of Jay and Silent Bob fame, has a daughter, 16-year-old Harley Quinn.

And she's quickly becoming movieland hot property.

So, just what do you need to know about Harley Quinn?

Unsurprisingly, as her dad is a comicbook devotee and regularly contributes to Arena magazine, Harley is named after a famous comicbook character.

Harley Quinn of DC Comics notoriety is a famous adversary to Batman and frequent lover and accomplice of The Joker and is currently being played by Margot Robbie in Suicide Squad.

Here's the real Harley Quinn impersonating her comicbook namesake:

instagramView full post on Instagram

She's starring alongside fellow superchild Lily-Rose Depp in Kevin Smith's leatest cinematic enterprise Yoga Hosers, which they're currently promoting at The Sundance Film Festival. 

Harley and Lily-Rose have actually known each other since kindergarten.

The pair star alongside Justin Long.

She's really nailing her social media game right now, treating her 60K Instagram followers to beautiful posed shots, punctuated by more sweet and candid images:

Her fashion sense has that cool girl, Gwen Stefani vibe to it. Her red lipstick game is on point.

She's actually been banned from seeing some of her father's other films - including Dogma and Mallrats - due to the racier nature of some of the scenes. She's still only 16-years-old, after all.

Headshot of Natasha Bird
Natasha Bird
Former Digital Executive Editor

Natasha Bird is the Former Executive Editor (Digital) of ELLE.