Candace Flynn

Trivia

 * Candace is allergic to dairy products as revealed in "Candace Loses Her Head", "Let's Take a Quiz, "Oh, There You Are, Perry", and "Wizard of Odd". However, she can eat a grilled cheese sandwich and cereal in "Journey to the Center of Candace" and "Oh, There You Are, Perry", yet they are either consumed in quantities beneath the threshold of her allergy, or are non-dairy. Dan Povenmire revealed in an a Times Talks interview that he and the staff never thought of the error until the interview.
 * Candace is also severely allergic to "wild parsnips", which causes large skin rashes on her face and her voice to change to a deep baritone as shown in "Jerk De Soleil". Her 2nd dimension counterpart is also revealed to have this in "Phineas and Ferb The Movie: Across the 2nd Dimension".
 * Candace has acrophobia in "S'Winter", "Bowl-R-Ama Drama", and "The Doof Side of the Moon". She may have developed this fear because she falls out of any tree that she climbs.
 * She had arachnophobia. ("Phineas and Ferb Save Summer")