Brickie Briggs

Brickie Briggs was casted inside a phone by Gwen. She did this for messing with her friends and her husband. She is deleted from her phone. So, noone can deal with her anymore.

The Future, Girls!!! Part 2
She doesn't psychically appear. However, her gun was heard.

Meeting Gavin Watson
She revealed that she killed Riley Lay with her gun. She, then shots Connie. Proceeds to make Gavin forget long enough, to kill the bubble girl.

Forget Me, Not
The Bubble Girl was going to die. When, Gwen casted her inside her phone, to erase her. This same episode revealed that Super K is her father, and hates superheroes just like him. Sometime after the events of this episode, she manages to survive to presumably kill Hailey Hart. She shoots her to take her out of her bubble. Then, she pops her bubble, and destroys every plastic bubble in the world.