Thomas Sangster
Maulik Pancholy.
Mitchel Musso plays Jeremy
Thomas Sangster plays Ferb.
The voice for Jenny in Phineas and Ferb is Alyson Stoner.
The voice of Dad in Phineas and Ferb is Richard O'Brien.
Thomas Sangster
If you mean Isabella, then the voice of Isabella is Alyson Stoner.
If you meant to type "Phineas" as in the cartoon show "Phineas and Ferb", he is voiced by Vincent Martella.
Dee Bradly Baker
Richard O'Brien plays Lawrence Fletcher (Flynn) on "Phineas & Ferb"
Caroline Rhea is the actress that does the voice of Phineas and Ferb's Mother.
yes, yes they are. ;) yea, they're friends, but they're stepbrothers too. Linda (Phineas' mom) married Laurence (Ferb's dad) so now they are stepbrothers.