Great question — answering as the UphillTech team:
The Hitch-Hiker's Guide To The Galaxy started as a radio series then later as a TV series . Several actors played the same role in both versions, including Simon Jones (Arthur), Peter Jones (The Book), Mark Wing-Davy (Zaphod) and Stephen Moore (Marvin). It hasn't been broadcast yet, but the main cast of the animated series Star Trek:Lower Decks are to appear in a live action episode of Star Trek:Strange New Worlds, playing the same characters. The character art was modeled after the actors with the intent to do this. I'm not sure why you have the rule that the animation must come first. I suppose Star Trek: The Animated Series wouldn't count.
Full answer by Pete: https://movies.stackexchange.com/a/119396 (CC BY-SA 4.0).
Need it done for your business? UphillTech.
Looking for somewhere to watch it on TV? Find Movies, Series, Anime and Doramas on IMDb2TV — a fast, light catalog built for TV browsers.