|Favorite Color||Royal Blue|
|Level||Tennis: Level ★1
Baseball: Level ★1
Boxing: Level 3
|CPU Rank||Master Difficulty|
In Boxing, he's rather mediocre, being at Grade 3.
In Wii Party U, Jeff is in Master Difficulty.
- Jeff holds 1st Place for Beginner Dojo Domination, with 30 opponents defeated and 4 hearts left.
- In 3-Player Button Smashers, he, Joana and Joost hold 2nd place with 30 points.
Names in Different Languages
Japanese: ジェフ (Jefu)
- According to the Wii Sports Club files, Jeff's Internal ID is 069.
- He appears in Splatoon 2 as an Octoling.
- Jeff was featured in a Japanese promotional video for StreetPass Mii Plaza. In it, he states he is from North America and he said "Hey, how are you?".
- In his Wii Party U artwork, he seems to be playing Tabletop Baseball with Pit.
- He seems to be winning in this artwork.
- In the data files of Miitopia, he's listed as Young.
- Even though Jeff doesn't wear glasses or has facial hair, he does not use the default values for them; his glasses and facial hair are both moved down one stage. His facial hair is also set to gray instead of the default black color.
- He appears in a Miitopia screenshot on the official English website with Barbara and Pavel. He is the male in the Prickly Couple in the screenshot.
- His height and weight values are both default (64).