Michael Dorn
as Lieutenant Commander Worf
Neal McDonough
as Lieutenant Hawk
Marnie McPhail
Robert Picardo
as Emergency Medical Hologram
Dwight Schultz
as Lieutenant Reginald 'Reg' Barclay III
Marina Sirtis
as Commander Deanna Troi, Counselor
Gates McFadden
as Commander Beverly Howard Crusher, M.D.
Patti Yasutake
as Lieutenant Alyssa Ogawa, R.N.