Roxy (Japanese: ユミ Yumi) and Oli (Japanese: タク Tak) are a pair of interviewers from Pokémon Diamond and Pearl and Pokémon Platinum.
They can be battled at the Jubilife TV station in Jubilife City, on Thursdays in Diamond and Pearl. In Platinum they can be battled in different Pokémon Centers daily. Specifically,
- Sunday, Tuesday, Saturday: Eterna City
- Monday: Jubilife City
- Wednesday, Thursday, Friday: Veilstone City
- Roxy was named after the main character in a Something Awful user's Let's Play of Crystal, who used a Wooper as her main Pokémon after leaving her "evil" Totodile with her mother. Nob Ogasawara, the lead translator for Diamond and Pearl, is a member of the Something Awful forums and was a reader of the Let's Play thread in question.