• Vincent Martella as Phineas Flynn
  • Thomas Sangster as Ferb Fletcher
  • Ashley Tisdale as Candace Flynn
  • Dee Bradley Baker as Perry the Platypus
  • Dan Povenmire as Dr. Doofenshmirtz
  • Maulik Pancholy as Baljeet Tjinder
  • Tyler Alexander Mann as Carl the Intern
  • Richard O'Brien as Lawrence Fletcher
  • Caroline Rhea as Linda Flynn-Fletcher
  • Alyson Stoner as Isabella Garcia-Shapiro and Jenny Brown
  • Kelly Hu as Stacy Hirano
  • Mitchel Musso as Jeremy Johnson
  • Jeff "Swampy" Marsh as Major Monogram
  • Bobby Gaylor as Buford van Stomm
  • Olivia Olson as Vanessa Doofenshmirtz
  • Ariel Winter as Gretchen
  • Michaela Zee as Ginger Hirano
  • Lorenzo Lamas as Meap
  • David Mitchell as Mitch
  • Love Handel

Gravity Falls characters

  • Jason Ritter as Dipper Pines
  • Kristen Schaal as Mabel Pines
  • Alex Hirsch as Grunkle Stan, Soos Ramirez, Bill Cipher and Fiddleford Hadron "Old Man" McGucket
  • Linda Cardellini as Wendy Courduroy
  • Dee Bradley Baker as Mabel's pet pig
  • J.K. Simmons as Stanford "Stan" Pines
  • Niki Yang as Candy Chip
  • Carl Faruolo as Grenda
  • Thurop Van Orman as Li'I Gideon
  • Jackie Buscarino as Pacifica Northwest
  • T.J. Miller as Robert Stacy Valentino
  • Justin Roiland as Blendin Blandin
  • Sev'ral Timez


  1. "Today is Gonna Be a Great Day" – Bowling for Soup
  2. "You Gotta Play Nice" – Bowling for Soup
  3. "I Don't Need No Man" – Isabella Garcia-Shapiro, Mabel Pines, Wendy Courdroy and Candace Flynn
  4. "Grumpy Old Guys" – DMNV
  5. "Summer (Where Do We Begin?)" – Phineas Flynn and Dipper Pines
  6. "Worlds Collide" – Love Handel and Sev'ral Timez
  7. "Keep in Touch" – Cast of Phineas & Ferb and Gravity Falls
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