Gravity Falls' Alex Hirsch Explains Plans for Dipper and Mabel's 13th Birthday

Gravity Falls creator Alex Hirsch can

Alex Hirsch - Animator, Producer, Writer, Voice Actor

Alex Hirsch - Animator, Producer, Writer, Voice Actor

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Alex Hirsch Left The Ending Of Gravity Falls Intentionally Vague (In Case He Wants To Return To It) - IMDb

Fordtato — We interviewed Alex Hirsch!

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Alex Hirsch's inspiration for Dipper and Mabel vs. the Future

BillDip - ScarlettClairvaux - Wattpad

Why do people think Mabel was the selfish one in 'Gravity Falls'? Dipper was the one who was going to abandon her without even talking to her about it first. Why doesn't

The Final Countdown: Number 1: Gravity Falls: “Dipper and Mabel vs. The Future”/”Weirdmageddon Parts 1 and 2” – yahoo201027