("A short while later, Ferb builds a supercomputer that can answer anything. He is the son of Linda Flynn-Fletcher and step-son of Lawrence Fletcher. Jessica "Jessie" Grace Fletcher is Ferb's twin sister. Not only did they create a rollercoaster, but they created a beach in their backyard as well, where Ferb sang his first known song, Ferb helped Phineas remodel Mount Rushmore for Candace's birthday, carving Candace's face into the sculpture. He also shows interest in trucking, old movies, England history, and rock music. In winter, he layers a light green button neckline sweater with dark green zig zags and a reindeer on the front over his outfit, while his winter-wear consists of a grey jacket with silver buttons, black snow pants, dark green boots, red gloves, a red hat, and a dark green plaid scarf. Together they took the time to practice patience while Ferb and his stepbrother went into space to see the star his father had bought for them. Very laconic, Ferb is not actually shy like one would assume, but very courageous and clever. ("Ten years into the future, Ferb is preparing to go to school back in England, and tries to help an indecisive Phineas decide where he is going to school. Phineas and Ferb returned home and accompanied Isabella to the Night of the Falling Stars dance ("Ferb tested Meap's spaceship out for a run when he was done repairing it. Isabella is good friends with Ferb, perhaps because he's the stepbrother of her crush, Phineas. The pair are visited by Baljeet and Buford, the former an early college graduate and the latter preparing to go off to college himself, and the trio inform the previously oblivious Phineas that Isabella has had a crush on him for years. Unlike with Lawrence, Ferb has called Linda "Mum" on one occasion ("Isabella is a good friend with Ferb, perhaps because he's the step-brother of her crush, Phineas. They also helped Isabella earn her patch by turning the Fireside girls into bees.
("The boys decided to create an antique car for Candace. Jean Yoo, an official press member for Critical reception for the character has been generally positive. Quick thinking and on his feet about things, Ferb is a mechanica… Surviving an asteroid field and other dangers, they ran out of fuel and stopped at an asteroid where a milkshake bar stood. One day when Doof's "Babe-inator" hit Phineas and Ferb, they were turned into babies. Ferb was also a very successful time-traveler, since he and Phineas fixed a time machine at the local museum, traveling back in time to 300 million B.C. In Paris, Ferb shows his crush on One day, Ferb and his brother decide to build a rollercoaster again. He has almost single-handily built a roller coaster and track, a real radio-controlled race car, several arenas and stadiums, a space laser (which was supposed to be an ice cream maker but the plans got accidentally switched), a monster truck, a shrinking submarine, and a time machine as well as helping build many He also has great dancing skills, which he helps Jeremy with for Candace on a national dance show ("When he grows up he wants to be a movie director. — Phineas Flynn, "The Phineas and Ferb Effect". He was once referred by Phineas as being "more of a man of action." Linda Flynn-Fletcher (usually addressed and credited as "Mom" or "Mrs Flynn-Fletcher" by Isabella or originally as "Linda Flynn" ) is the mother of Phineas and Candace Flynn, and the stepmother of Ferb Fletcher. He can also sing and can change his voice to another amplitude (as seen in the Phineas is not just Ferb's stepbrother, he is also his best friend. Lawrence Fletcher is Ferb's biological father, the step-father of Phineas and Candace, and the husband of Linda; the two fell in love at the farewell concert of Love Handel in the'90s.