Digimon Tamers

Digimon Tamers (デジモンテイマーズ Dejimon Teimāzu), commonly referred to as Digimon 3, is the third anime television series produced by Toei Animation based on the Japanese Digimon franchise. Unlike the previous seasons, Digimon Adventure and Digimon Adventure 02, Tamers takes place in a different universe, where the first two seasons are a TV show. The show mostly takes place in the real world and revolves heavily around the collectible card game based on the series.

Reunion (The City Attacked by the D-Reaper, The Tamer's Resolve) (Episode 42)
A D-Reaper agent posing as Juri (Jeri in English dub) behaves oddly and her eyes are different than usual after returning back to the real world. (Sidenote: The real Juri got kidnapped by D-Reaper and sealed inside the Kernel Sphere)

The D-Reaper's Disguise (Stand Up to the D-Reaper, Charge into the Zone!) (Episode 45)
Takato met "Juri", who reveals herself to be part of D-Reaper. She changed into a D-Reaper Digimon called the Agent.

Runaway Locomon (Movie)
The Tamers are planning to throw Rika a surprise party, but their plans are derailed as they must try to stop a train-Digimon named Locomon, who is being controlled by Parasimon who has opened a portal to the Digital World that is allowing other Parasimon to cross over and invade the city. Rika tries to stop the train but got controlled by Parasimon too.