Lana Parrilla's Behind-the-Scenes Photobomb

Here Comes Lana!

Sean Maguire, Alexandra Metz... and Lana Parrilla

Lana Parrilla just can't help herself sometimes. Here, she photobombs poor Alexandra Metz (Rapunzel) and Sean Maguire (Robin Hood), who starred in 3x14 "The Tower."

Lana is what is known as a "scene-stealer."