he probaly got divorced
Ferb's dad is on the show and Phineas' dad was never mentioned on the show so we don't know what happened to him.
The person who plays Ferb and Phineas's dad is Richard O' Brien.
I am pretty sure that Phineas' parents either got a divorce or his dad died and his mom remarried Ferb's dad. While Ferb's parents either got a divorce or his mom died and his dad remarried Phineas' mom. Phineas and Candace Flynn and Ferb Fletcher. Phineas and Candace also are not adopted by Mr. Fletcher. So as Ferb isn't adopted by Phineas and Candace's mom. *I am not 100% sure about this. It's just a hypothesis.
Richard O'Brien plays Ferb's dad and Phineas and Candace's step-dad and linda's husband
There Father's Name Is Lawrence.
Nothing.
Ferb is Phineas's stepbrother. Phineas's mom married Ferbs dad.
Richard O'Brien
The voice of Dad in Phineas and Ferb is Richard O'Brien.
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.
He is a lier he isn't a producer because my dad is high up in the industry and he said there will be a Phineas and Ferb Movie.
Ferb is from the Dad. Phineas and Candace are from the Mom.