"Some"? 29 episodes across TNG, DS9, VOY and ENT. That's even one more TV episode than Jonathan Frakes directed. (although Frakes also directed two movies)

Come to think of it: Star Trek had a bunch of actors directing episodes every now and then. I don't think that many other TV shows did that, didn't they?

That's how he taught Nog the joy of reading.

Lots of cast members ended up directing over the years. 90's Trek had a reputation for being a factory for directorial debuts. It's really neat, it brought a lot of variety and personality to the episodes.

Roxane Dawson (B’elanna Torres on VOY) went on to a pretty good directorial career as well. A couple examples off the top of my head include episodes of Foundation and House of Cards.

Jonathan Frakes and Robert Duncan McNeill each directed a couple episodes of The Orville too.

This might already be well-known but Avery Brooks also directed some episodes! Like Far Beyond the Stars, one of the best episodes

The TNG/DS9/VOY era was pretty famous for “Star Trek Director’s School” for the actors. Most main cast folks tried their hand at directing at least once or twice. (It’s fun when you notice it for the first time. Their characters usually have bit parts in the first episode they direct.) Jonathan Frakes (Riker) directed episodes have become known for their top-down “god shots” in a lot of episodes like Cause and Effect. https://observer.com/2023/03/jonathan-frakes-on-his-journey-from-star-trek-actor-to-director/

The Star Trek franchise has a lot of main cast actors who directed episodes.

https://screenrant.com/star-trek-actor-directed-movies-episodes/

I literally watch a ds9 directed by him just today.

I could be wrong, but I think it was the episode where odo goes back to when he was the constable for the cardassians in some psychic state.

It was pretty good, but I think Kira over reacted at the end. Maybe I missed something, but she seems to be too hard on him.

This is news to me! Somehow I've never noticed.