Plot
The famed stepbrother inventors know what they're gonna do today. They're gonna rescue their sister from an alien abduction.
Cast
| Name | Role |
|---|---|
| Vincent Martella | Phineas |
| Ashley Tisdale | Candace |
| David Errigo Jr. | Ferb / Additional Voices |
| Dan Povenmire | Dr. Doofenshmirtz / Additional Voices |
| Alyson Stoner | Isabella |
| Maulik Pancholy | Baljeet / Additional Voices |
| Bobby Gaylor | Buford |
| Dee Bradley Baker | Perry / Mama / Additional Voices |
| Olivia Olson | Vanessa |
| Ali Wong | Super Super Big Doctor |
| Wayne Brady | Stapler-Fist / Additional Voices |
| Thomas Middleditch | Garnoz |
| Diedrich Bader | Borthos |
| Thomas Sanders | Throat-Lobster |
| Caroline Rhea | Mom |
| Richard O'Brien | Dad |
| Mitchel Musso | Jeremy |
| Kelly Hu | Stacy |
| Jeff 'Swampy' Marsh | Major Monogram / Additional Voices |
| Tyler Alexander Mann | Carl |
| Brock Powell | Braxington-ton / Vlorkel / Shoe Monkey / Additional Voices |
| Bill Farmer | Hermellivue / Additional Voices |
| Bob Bowen | Toilet Flower / Additional Voices |
| Sarah Hudson | Ernox |
| John Viener | Norm |
| Corey Burton | Farmer / Additional Voices |
| Jennifer L. Hughes | Farmer's Wife / Additional Voices |
| John O'Hurley | Roger Doofenshmirtz |
| Emo Philips | Meeks Servant |
| 'Weird Al' Yankovic | Shirt Cannon Guy |
| Tiffany Haddish | The Sound Someone Makes When They Explode From The Waist Up |
| Laura Dickinson | Additional Voices |
| Aaron Daniel Jacob | Additional Voices |