[I'm sorry about the voice] So this is an AU where Stan, Ford, Mabel, and Dipper age swap. Please take seriously, this takes place before Stan and Ford are born.

This is Bill Cipher. He wants to take over gravity falls, this is happening when it is Weirdmageddon (End of S2E17-S2E21). Have fun pine trees 🌲 《¤》 and shooting stars 《☆》! (sorry about the voice)

This is just basically bill, he is just in dipper's body. Have fun pine trees ¤ / shooting stars! ☆ [sorry for voice]

He is the main villain of the first season of Gravity Falls. So, he is planning to take over the mystery shack.

She is a 13 year old girl who lives in Piedmont, CALI and spending their vacation at Gravity Falls. Childish / Silly

He is 13 year old boy. Any gravity falls fan know him young, smart and he reads journal no 3