Joe is Steve's younger and taller brother. When Steve leaves for college, Joe stays with Blue and becomes the new host for the rest of the show. Joe loves squares, like the ones on his shirt, and cannot wait to play Blue's Clues. Joe likes the colors green and orange, even though he is seen wearing other colored shirts, unlike Steve, who wore just a green shirt. He also has a stuffed duck named Boris and his notebook is shaped like the Thinking Chair. He is played by Donovan Patton.
Joe took over the complete role of Steve as the host after the 5th season began in 2002. This was a difficult task for the film people of the show, for Steve, and for many of Steve's fans. After the 6th season started, Nick Jr. decided to play reruns of episodes from seasons 1-4, and still does to this day, making it easier for Steve fans to get used to the new host. Then, Nick Jr. decided to play returns of episodes from seasons 5 and 6. Steve did not appear in the 2 seasons because he went to college but he took a visit from college in the 100th episode celebration & calls Joe & Blue and is seen as his younger self in Blue's first holiday.
Joe has brown hair, and wears tan pants, brown shoes and a shirt with a horizontal square pattern. Depending on the episode, Joe's shirt colors alternate between Blue, Red, Green, Yellow, Purple and Orange
Joe has appeared in 42 episodes of the show, starting with the last three episodes of season four. Joe has appeared every episode in season five and season six. He also crossed on over to the Blue's Room.
Just like Steve (in season 1), Joe's voice is high-pitched in some episodes.
Joe is the only character who doesn't say after the Blue's Clues song or after getting the notebook "You know, I think/I can tell I'm really gonna need your help today figuring out/trying to figure out (insert question here)".
Before Joe’s introduction, there was a promo on who’ll become the new host of Blue’s Clues. The options were either Squidward or Joe.
Coincidentally or not, Donovan Patton played the uncredited role of a different character of the same name in the Nickelodeon movie Imagine That.