|Theodore McCallister III|
|Name||Theodore McCallister III|
|Occupation||Evil Boy Genius|
|Family||Claire McCallister (Mother)|
|Abilities||Genius intellect, brilliant mechanical skill, able to create fifty-foot tall destructive robots|
|Voice Actor||Patton Oswalt|
Theodore McCallister III aka "Tobey" is a 10-year-old villain in WordGirl. He is voiced by the comedian/actor Patton Oswalt. He is approximately Becky Botsford's (AKA WordGirl's) age and is home schooled, though in later episodes he appears to be in Becky's school. He is a boy genius that specializes in building enormous robots, which he uses to destroy the city. His robots seem to be mostly for destructive purposes, but they have shown a wide array of abilities, such as food-making, cabin-building, checker-playing, painting, competing in athletic events, etc.