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 (which means seasons 5 to 6). Joe loves squares, like the ones on his shirt, and cannot wait to play Blue's Clues. Like Steve, Joe's favorite color is green (as proven in the episodes "Steve Goes to College", "Colors Everywhere!", and "The Big Book About Us"), even though he is seen wearing five other colored shirts, unlike his brother who wore just a green shirt. He also has a stuffed duck named Boris and his notebook is shaped just like the Thinking Chair. As of Blue's Clues & You!, he works at the Present Store. He is played by Donovan Patton.
Joe is blue's second caregiver and he 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 last 2 seasons because he went to college but he took a visit from college in the 100th Episode Celebration and calls Joe and 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 appeared in 42 episodes of the show, starting with the last three episodes of season four. Joe appeared every episode of seasons five and six. Joe's first appearance was in "Joe's First Day," and his last appearance was in "Bluestock."
He also crossed on over to the Blue's Room spin-off. He was featured as a guest star in the first season episode "Holiday Wishes." In the second season, he became a regular character,
Joe is left-handed in the series.
He is the only host who is not named after his actor.
He is also the only character to wear different colored shirts. They are Orange, Green, Blue, Yellow, Red and Purple.
If he wore the color Indigo, then he would've worn all seven colors of the rainbow.
If he wore the colors Black, White, and Pink, then he would've worn all of the colors on the wrapping of the crayons he used. throughout the series.
During the summer of 2002, he hosted Nick Jr. with the shorts, Summer with Joe.
Joe's notebook is shaped like the thinking chair.
Tuba music is heard when Joe draws a clue.
Although he is younger, Joe is taller than Steve by 5 inches (he is 6 feet tall)
When Patton auditioned for the show, he had no idea that he was auditioning for a kid's show. He thought he was auditioning for a show that involves the blues.
He is the only host to never give out wrong answers.
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 from SpongeBob SquarePants or Joe.