The Fairly OddParents (2001)

S07E18 Double Oh Schnozmo

When Schnozmo, Cosmo's brother, shows up claiming to be a secret agent, everyone is intrigued. However, it's soon revealed that he's actually a con artist. To protect Cosmo's feelings, Wanda decides to involve Schnozmo in an authentic spy mission, hoping to give him a taste of genuine adventure.