Cosmo and Wanda
Cosmo and Wanda (voiced by Daran Norris and Susan Blakeslee respectively) are the married pair of fairy godparents that are assigned to Timmy Turner. In the series' beginnings, they were portrayed as being very much in love; in later seasons, a more stereotypical nagging wife/idiot husband portrayal was substituted, which contributed to the series' fall from popularity. In "Wishy Washy," they turned back into teenagers-- thus causing Poof to disappear, as they were never married-- but returned to adults later in the episode.
Ages: Over eleven thousand years
Height: Around Timmy's height, although they appear bigger than him in the pilots and smaller in Jimmy Neutron's dimension.
Cosmo's Family: Timmy (godchild), Poof (son), Mama Cosma (mother), Wanda (wife) Big Daddy (father in law), Blonda (sister in law)
Wanda's Family: Blonda (sister), Timmy (godchild), Poof (son), Big Daddy (father), Cosmo (husband) Mama Cosma (mother in law)
Friends: Timmy Turner, Jorgen Von Strangle (possibly, as said in teeth for two), Other fairies
Cosmo's Hair and Eye Color: Green
Wanda's Hair and Eye Color: Pink

lalalalala