Chekov Appears In Star Trek: The Animated Series

Good ol' Filmation. They popped Chekov in a red shirt in the first episode. Beyond The Farthest Star. They could have kept him in every so often and just had him not say anything.

[@Nigel-xp4rf]

The 'Red Shirt' is Scotty, Walter who played Checkov wasn't in it anywhere but did get the chance to write one episode.