Mama Cosma

Mama Cosma is Cosmo's overprotective and mean mother who does not approve of Wanda marrying Cosmo. She has tried numerous schemes to break them up but has always been thwarted by Timmy Turner and Wanda.

Notable scheme
One scheme that she has pulled off unsuccessfully is when she showed 500 fairies a tape about Cosmo's life. But she was thwarted, yet again, by Wanda and Timmy.