They are Brother & Sister.
The one who does Candice's voice in Phineas and Ferb is Ashley Tisdale.
Candice.
Jeremy
Yes she does
Phineas' mum married Ferb's dad who is English. Ferb was already born and had been living in England. Phineas and Candice had been living with their mum in America.
Ashley Tisdale is the voice of Candice Flinn!!
She is Jenifier Stone/Harper from Wizards of Waverly Place!!:)
No, Candice Wyatt is not related to Jay Mehlor.
its the one when Phineas and ferb direct the play "the princess monster". NOOOOOOOOOOOOOO!!!! Its the episode where Phineas and ferb sing the song gitchi gitch goo and when Candice happens to be the 100th contestent and she sings the song with them...sooooo coincidently, or serendipitously, it became a brother sister thing. :)
Ferb is the stepbrother of candace.Phineas and candace are real siblings.
Ashley Tisdale does play Candace Flynn on the popular Disney Channel animated series, Phineas and Ferb.
Ferb is Phineas' step brother and the Dad's real son. Phineas and Candace are the Mom's real kids and the Mom and Dad got married when all the kids were small. The dad's side of the family is from England and are in a couple of episodes and the mom's parents are in a couple too. The mom's parents are in the episode were they go camping.