Jessie

Jessie is a CPU Mii from the Wii Sports series and Wii Party.

Wii Sports
In Tennis, she is at around 760-770 in skill and plays with Jackie, but occasionally Silke. In Baseball, she is one of the first 9 players and has a team of Abby, Kentaro, Matt, Akira, Luca, Emma, Elisa, and Silke. Jessie plays on every team from Elisa to Jake.

Wii Sports Resort
In Basketball, she is a Pro, with a skill of 1138. Her Basketball team is Akira and Nelly. In Table Tennis, she is not good, and is at level 270+. In Swordplay, Jessie is good. Her level is 866+.

Wii Party
In Wii Party, Jessie is a Beginner Mii.

Trivia

 * Jessie and James could quite possibly be a reference to the duo of the same name from the Pokémon anime, or the singer Jesse James, where the duo got their name.