Ferb Fletcher

Ferb Fletcher is the Step Brother of Phineas and Candace, and the Step Son of Linda, he and Phineas have a Good Relationship which they never get into Fight, Ferb Appears as the Smartest of Family as he states in the first episode that Platypus's are the only Mammals that lay Egg and he will often Correct People on the Right Facts, one time when he and Phineas Found Perry's Lair, Phineas Thought that Ferb bulled it Even-tho he really didn't Which he tried to tell him that he wasn't Responsible for it but Phineas keep talking over him, when they find out About Perry's Cover Phineas was Very bad at Perry But Ferb Didn't show any Reaction What so ever,