He originally transferred to Wayside after an accident involving helping kindergarten kids with retrieving toys, only for an unusual series of events to happen, leading the toys to be destroyed by a wood chipper. Ever since, he fears kindergarten kids. However, his stay at Wayside is no better; every day, he manages to get into enough trouble as to being sent home early on the kindergarten bus. Though he never deliberately misbehaves, Mrs. Jewls frequently punishes him, due to technicalities and minor infractions (like answering a question on don't answer a teacher's question day). He has came to good terms with the kindergarten kids at Wayside after saving a girl's stuffed animal. His social status is questionable. He is good friends with Dana, Myron, and Maurecia. A running gag that often occurs with Todd throughout the series is when Mr. Kidswatter calls him "344 South Fairview", his address, instead of his name.
Todd is a person of routine, order, and habit, although not as much as Dana. He wants to make Wayside a more logical place and does so several times, although he is often foiled in the end. Todd tries to make a stand. He has very little or no interest in romance, despite Mauricia's crush on him. He says he wants to be a dentist when he grows up.
Todd is the "victim" of Maurecia's crush, even though he doesn't think of her as a girlfriend but only a friend but still he still is getting punched in the shoulder on many occasions.
At the start of the series , he is voiced by Michael Cera, as opposed to Mark Rendall later on.