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Diet [pronounced dee-yet] is a recurring character of The InBESTigators. He is portrayed by Ethan Pham.




Season 1

The Case of the Big Mouth Challenge

Diet failing in the Disk Chockey Challenge.

In this episode, Diet, along with the other students in his class, introduce themselves to Ben, who did not feel welcomed. Soon, he, along with the other boys in his class, were impressed to see Ben put Disk Chockey in his mouth without breaking anything. So, he decided to enter the Disk Chockey Challenge, and participated in the fight of who would go next. Like the other students, Diet missed the challenge, and was quite bored by the competition, since he wasn't being fun for anyone.

The Case of the Wrecked Rehearsal

Season 2

The Case of the Problematic Party

The Case of the Tricky Trimathlon

In this episode, Diet signs up for Trimathlon, an online math competition where several schools compete against each other. Miss Tan selects the pairs, among them Diet along with Amelia. The two begin to study together without any difficulty. The next day, the first round of Trimathlon begins and Diet and Amelia make no mistake, but that was not enough to go to the next round, as Ezra and Kyle answered the last question before them.

The Case of the Unhappy Camper

Diet's reaction after being pranked by Kyle.

Diet went, along with the rest of Grade 5, to Grade 5 Camp, and formed a cabin group along with Kyle, James, Justin, Ezra and Archie. When they get there, Diet, along with the others, were completely irritated by Kyle's rules, and when Archie was startled by what Kyle said about sleeping outside, Diet asked if he could sleep upstairs in his place. While preparing dinner, Diet was a victim of Kyle's pranks, the one when he presses the ketchup to put it on his sausage, the lid comes off and the sauce spills into the entire plate.




Diet is Toby's best friend. During "The Case of the Problematic Party", Toby was afraid to tell Diet that he had not invited him to his birthday party (that he could invite only 5 friends because the laser tag is too expensive), not to hurt him, however, Diet knew when he found Kyle's invitation, which he had lost while he was fighting karate with James. So Diet copied the invitation and distributed it to everyone secretly, but Diet didn't realize what it did to Toby. When Toby went to the infirmary pretending to be sick, Diet decided to go too, but he was afraid he would find out, so during the break, Diet was very welcoming to him and played with them a lot, but after the inbestigators found out, Toby he felt bad when he saw that his friend was upset because he was not one of the 5 guests to his party and made excuses. Although his parents were very angry, they felt guilty about the situation and decided to invite Diet as well.



  • He might be the smallest boy in 5th grade.