Which episode is this scene from? (Not with that dialogue of course)

“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?

Worf has the most appearances by far. 284 + 4 films.

O’Brien has ~205 appearances across TNG and DS9.

Picard has 209 + 4 films across TNG, DS9 and PIC.