Vincent Martella does the voice of Phineas.
Jeff "Swampy" Marsh voices Major Monogram in Phineas and Ferb.
The answer is Jeff ''Swampy'' Marsh.
Major Monogram, Perry's boss, is voiced by Jeff "Swampy" Marsh. He is also the co-creator of the show.
Alyson Stoner is the voice of Isabella from Phineas and Ferb. I hope this helps you. Enjoy! Keep on watching Phineas and Ferb!
Allison Stoner plays Isabella's voice in Phineas and Ferb.
Vincent Martella does the voice of Phineas on Phineas and ferb.
If you mean the voice of Phineas on Phineas and Ferb, then Vincent Martella.
Major Monogram
Francis
major monogram doesn't have a sister
Jeff "Swampy" Marsh
major monogram- agent p's commanding officer
Jeff "Swampy" Marsh is the voice of Major Monagram on Phineas and Ferb.
Major Monogram, Perry's boss, is voiced by Jeff "Swampy" Marsh. He is also the co-creator of the show.
Richard O'Brien is the voice of Phineas and Ferb's father
Carl. Carl is quote 'an unpaid intern' 'working for college credits.'
The one who does Candice's voice in Phineas and Ferb is Ashley Tisdale.
Alyson Stoner is the voice of Isabella on Phineas and Ferb.
Stacey Hirano in the show Phineas and Ferb is voice acted by Kelly Hu.