You should watch:

Sub Rosa

This was episode number 14 of season 7.

The following characters appeared in this episode:

(uncredited) Ensign Jae
Captain Jean-Luc Picard
Counselor Deanna Troi
Commander Wiliam T Riker
Doctor Beverly Crusher
Felisa
Lieutenant Worf
Lt Commander Data
Lt Commander Geordi La Forge
Maturin
Ned Quint
Ronin