Vanessa Doofenshmirtz is a recurring character in Phineas and Ferb. She is the daughter and only child of Heinz and Charlene Doofenshmirtz, Ferb Fletcher's future girlfriend, and one of Candace's friends. She was born on June 15, coincidentally the same day as Linda and Lawrence's wedding anniversary ("Dude, We're Getting the Band Back Together"). She sometimes helps her father with his schemes, albeit reluctantly.