Thomas Edison has brown hair when he's young and grey when he's older. He wears the same expression, but when he's younger, he has a red shirt with blue pants and a blue tie. When he's older he wears a beige suit with a brown tie.
In Time Tangled Island, Edison's phonograph is missing. You must find it to fix his time period. The phonograph is found on the roof of the Greek treasury building in the Greek period. When you return his phonograph, he thanks you and tells you that you can listen to the phonograph anytime until you return it.
In DC Diner, Thomas Edison appears as the first celebrity in the Diner. After he is served, he leaves, but he leaves his light-bulb for the Poptropican. In the after levels, you can see a picture of him on the wall above the door in the DC Diner.
In Mystery Train, he is heading to the Chicago World's Fair on the train, but he has trouble loading his cargo on the train, The John Bull. When the Poptropican helps him, he gives the player a Train Ticket and tells him that he might need his help again, and to meet him in his room. If you go to Edison before you finish talking to everyone on The John Bull, he will say that he is still working, and then he suggests for you to go and talk to the Poptropicans on the train. After you talk to everyone and return to him, you find that Edison is done with his newest invention, the motion capture device, and you witness it in action. Forgetting to turn the machine off, Edison leaves to bring in the New York Times Reporter so he can review the story. During that time, the thief turns off the lights and steals the machine, and Nikola Tesla sneaks in to see the device in action. After the lights turn on again, Edison returns (with the New York Times Reporter) and finds his machine gone. He first blames you, but when the player please of his innocence, Edison realizes that the thief must be someone else. After his machine is brought back, he refuses to believe that Tesla is the thief, and remembers that he forgot to turn off his machine. He and your Poptropican watch the footage on the device, and find that just seconds before the lights turn off, Nikola Tesla was on the other side of the train,meaning he couldn't have stolen it! Edison and your Poptropican agree, the thief must still be on the loose! He suggests to you to talk to Tesla, because he must know something. At the end, as the Fair goes on, he most likely shows off his invention, as does everyone else.