At first, Stinky Pete was friendly and acted like a grandfather figure and a mentor. However, he soon snapped and turned out to be evil, having grown bitter at the fact that he spent his life on a dime-store shelf and was never sold.
Stinky Pete first appeared when Woody meets his roundup when it is still believed his box is never opened. He later appeared showing Woody what space toys have done to the show, well what he hidd is that Woody sang with Andy youv'e got a friend in me. Woody wanted to go back home, but Stinky Pete got mad and secretly planned to force Woody staying. When Al by mistake rips off Woody's right arm, Stinky Pete leaves his box by using his pick and sabotages Woody's attempt to recover his arm by turning on the TV to prevent Woody from going back home. Woody however still missed Andy and fought for that with Jessie, well Pete told him to apologize to her and most importantly think twice if he is going. After Woody shared the feelings with Jessie by making her remember about Emily, they were all comfused if they want to go to Andy's house or to the musiem but the toys who came to rescue Woody helped them decide to go to Andy. However, Pete revealed his dark side and forced all three of them to go to the musiem in a terrible way (by locking the bars up = that didn't let Woody go back to Andy, and by pushing Woody into Al's airport case). Buzz then came to rescue Woody, and Pete just punched him on the face, making him fall onto the other case transport line. However, he came back with all of Andy's toys to the same line with cameras that took flash photoes of Pete. Pete got frightened of the flash and Woody put him into another suit case making him suffer play-time forever. However, in the credits he dated with 3 barbie girls.
Stinky Pete appears in the game as a meet-and-greet character along the Big Thunder Trail in Frontierland. At one point, he gives the player a fishing rod as a gift. He also asks the player to help track down some rustlers that are supposedly in the area.
From Official Website
"The Prospector was the comic sidekick on "Woody's Roundup," but offstage he is admired as a wise old toy. The Prospector, also called Stinky Pete, is a special toy for another reason - he's in mint condition and has never been taken out of his box!"
- The Prospector was a long-time member of the Roundup Gang on TV, and was often the butt of many humiliating jokes including having the sharp end of his pickaxe stuck in his bottom.
- He is the second Pixar villain to be physically fought. The first was Hopper, who was fought by the ants and circus bugs.
- Despite being a protagonist on the TV show, in reality, the Prospector was an antagonist as he tried many times to convince Woody to go to Japan with them and hurt some of Woody's friends.
- Stinky Pete was marked by his severe hatred for "space toys", whom he had blamed for causing the cancellation of the show, which ran on TV until the launch of Sputnik, which led to children's subsequent loss of interest in cowboy toys.
- After Toy Story 2 was released, there were interviews with all the characters on the website, including Stinky Pete, who stated that he had grown accustomed to having Amy decorate him, and he liked it, having reformed with a change of heart.
- Although Stinky Pete doesn't appear in Toy Story 3, he appeared in Toy Story 3: The Video Game as a minor character (this time more like the Woody's Roundup version). Kelsey Grammer didn't reprise the role.
- Stinky Pete predicted some of the events of Toy Story 3.
- In an outtake from Toy Story 2, Stinky Pete was talking to the Barbie twins about getting them a part in Toy Story 3. Since this was non-canon, it turns out it wasn't real, as only one Barbie appeared in the third film.
- Before Buzz, Woody and the gang stuffed him into Amy's backpack, he said that the toys would end up in a landfill, and they did.
- In Toy Story 2, Prospector asked Woody if he thought that Andy was going to take him to college or on his honeymoon, as it was unlikely an adult would do so. While in Toy Story 3, his prediction on that turned out to be true, with Andy ultimately handing Woody, along with his other toys (including Jessie and Bullseye), over to a girl named Bonnie Anderson. However, it should be noted that Andy was indeed initially planning on taking Woody with him to college, therefore defying the Prospector's expectations.
- There is a Toy Story 3 poster where Stinky Pete is leaning on a 3, possibly hinting that Stinky Pete was originally going to be in the third film.
- According to his box, the Prospector said 9 phrases, which probably went for the rest of the gang as well (except Bullseye). Some of them included: "There's Gold in them ther Hills", "Help! I think I'm stuck", "Aw...Shucks-A-Boo" and "Oh Boy!...Beans for Dinner."
- Despite the fact that he is neither one of Andy's toys nor one of Bonnie's toys, Stinky Pete makes a cameo in Toy Story Mania!. Again, like the Toy Story 3 video game, Grammer did not reprise his role.