Wataru Takeishi came back for a bit too. IIRC, his PV was pretty okay and well received. (Sweet scar on again)
Muto did Depend on you ages ago and then some PVs here and there till coming back for good for Microphone and Sexy little things.
Hideaki Sunaga did ANGEL'S SONG and Greatful days.
A Crew was her 'staff' that did all the PVs for Colours.
A list with bolded names:
Basically, the three directors (Muto, Takeishi, Sunaga) have done nearly all of her PVs... ever, lol. Except during 07-09.