Ariel Hirsch

 is Alex Hirsch's twin sister and is the inspiration for the character Mabel Pines. She guest starred in the episode "Boyz Crazy" as one of Pacifica's friends, the one with magenta colored hair. She was obsessed with Nsync's Lance Bass as a child, which is why Alex Hirsch asked him to voice the members of Sev'ral Timez. Ariel Hirsch was seen on Gravity Falls Wiki by the username Arielismabel.