Board Thread:New on TMNTPedia/@comment-39821279-20190707133143/@comment-33165688-20190920013617

Regarding the 2003 Leatherhead, he did not always wear a lab coat, just some of the time, mostly when he was hardcore-sciencing on something that he didn't see as time-sensitive. He also was trying to built a transmat to reunite with the Utroms, but the whole idea was kind of dropped after his first episode when Baxter Stockman caused the ceiling to collapse on his lair.

He was also partially defined by trauma, since between his first and second appearances he was captured by Bishop and tortured with various inhumane experiments for several months. This caused him to become unstable and even more prone to fly into violent rages. The Turtles let him live with them for a few weeks after freeing them, but after he nearly killed Michelangelo after a nightmare he refused to stay with them anymore, so Donatello found a new nearby lair for him to live in by himself. He got a better handle on his trauma and PTSD over time, to the point where he was able to be in Bishop's presence without trying to kill him, but was still clearly very traumatized.