Tobot D (또봇 D) is a new Tobot made for Dolly, made from Mrs. Park's car. He has no offensive weapons, but hid greatest skills lie in investigation and research. His Mind Core had some development issues at first, which gradually gets better, but D is left with elementary speech problems.
D often acts like a little brother to Dolly, and makes up for his lack of combat skills with his sleuthing abilities.
- Radar dish: The nubs on his head extend upwards to reveal a pair of radar dishes.
- Super Speed: D is quick on his feet and quite fast for a tobot, being able to evade Tobot Y, who was one of the fastest. Unlike Y, who runs in long strides, D runs in quick baby steps.
- Holographic Projectors: D has an unlimited number of holographic projectors in the shape of his head, which can be used to cover escapes.