Watch the full first episode of Lilo & Stitch: The Series, Season 1 Episode 1, "Richter"! Lilo and Stitch are on the track of Experiment 513, the aptly named
Lilo & Stitch: The Series: Season 1 (2003) — The Movie Database (TMDB)
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Richter - Lilo & Stitch: The Series (Series 1, Episode 1) - Apple TV (OM)
The Adventures of Sonic, Lilo & Stitch Season 1 - Episode 8: Yapper - Wattpad
Richter, Disney Wiki
Lilo & Stitch ~ Lilo (Part 1)
Lilo & Stitch: The Series (TV Series 2003–2006) - Episode list - IMDb
Richter (513), Lilo & Stitch Wiki
Colored Sketches 1 - Lilo and Stitch Experiments by SillyFoe on DeviantArt