|First Appearance||"AAIIEE, Robot!" November 25th, 2005|
|Relatives||Tuesday X (sister)|
The X's youngest son and technology expert. Truman, is a combination of Bart Simpson from The Simpsons and Dexter from Dexter's Laboratory. Truman is the smartest of all the Xs. His radiation "experiments" cause so many "meltdowns" that the local decontamination Squad are on a first name basis with the "X"s. The enfant terrible of the "X"s; Sometimes he can be a nuisance and make trouble.
Nicktoons: Attack of the ToybotsEdit
Truman appears as a collectible Master Model in the handheld version of Nicktoons: Attack of the Toybots.