Fredrick "Freddy" Flynn

Fredrick "Freddy" Flynn is the twin brother of Emmanuel and younger brother of Lizzy, as well as Phineas and Isabella's son.

Appearance
Freddy looks the most like his mother, but acts similarly to his stepuncle, Ferb. He has long, black hair and usually wears a yellow polo, green shorts, toothpaste-blue flip-flops and a large white hardhat.

Emmanuel
Emmanuel is Freddy's brother. Even though Freddy doesn't talk much, Emmanuel can always tell what he means.

Isabella
Isabella is Freddy's mom. Isabella does not approve of Emmanuel and Freddy acting like their dad, but they ignore her warnings and do it anyway.

Lizzy
Eliza "Lizzy" Flynn is Freddy's older sister. Freddy doesn't realize that Lizzy dislikes their Big Ideas and ignores her busting urge.

Trivia

 * In Emmanuel and Freddy, Freddy's role is Ferb's, but Freddy is younger.

Appearances

 * Back to the Present  (Official First Appearance)
 * Super Coaster  (Emmanuel and Freddy First Appearance)