Timmy loves technology, and flying ships from Red Fountain. He also has an IQ of 150, just like Tecna, and his aptitude for technology makes him the perfect boyfriend for her. He is sweet, but shy, and can even seemingly cowardly at times. He loves to be with Tecna, but he is shy and clumsy around her too. Tecna mentions that it is his sweetness and intelligence that impressed her.

In Season 2, he was so bashful that it interfered with him telling Tecna his feelings for her. It is also shown that he is quite oblivious to girls. He is the least skilled of the Specialists in terms of combat, but he makes up for it in his intellect.