This is my collage of Helmetless Power Rangers during the Saban era (MMPR-Wild Force). I added the skirts for the Yellow Rangers to indicate which Yellow Ranger was a girl.
First row: Trini Kwan (MMPR Yellow I), Billy Cranston (MMPR Blue), Jason Lee Scott (MMPR Red I), Tommy Oliver (MMPR White), Zack Taylor (MMPR Black I), Kimberly Hart (MMPR Pink I), Tommy/Tom Oliver (MMPR Green I/II), Aisha Campbell (MMPR Yellow II), Rocky DeSantos (MMPR Yellow II), Adam Park (MMPR Black II), Katherine Hillard (MMPR Pink II), Prince Dex of Edenoi (Masked Rider, Ranger-like ally), Rocky DeSantos (Red Dairanger), Adam Park (Green Dairanger), Aisha Campbell (Yellow Dairanger), Billy Cranston (Blue Dairanger), Kimberly Hart (Pink Dairanger)
Second row: Tommy Oliver (Ninjor, What if?), Adam Park (Ninja Black, What if?), Billy Cranston (Ninja Blue, What if?), Katherine Hillard (Ninja White, What if?), Rocky DeSantos (Ninja Red, What if?), Aisha Campbell (Ninja Yellow, What if?), Corcus (Black Aquitar), Cestro (Blue Aquitar), Delphine (White Aquitar), Aurico (Red Aquitar), Tideus (Yellow Aquitar), Tommy Oliver (Zeo V), Adam Park (Zeo IV), Rocky DeSantos (Zeo III), Tanya Sloan (Zeo II), Aisha Campbell (Zeo II, What if?), Katherine Hillard (Zeo I)
Third row: Jason Lee Scott (Gold Ranger II), Trey of Triforia (Gold Ranger I), Billy Cranston (Gold Ranger, What if?), Tanya Sloan (Yellow Turbo I), Rocky DeSantos (Blue Turbo I, What if?), Tommy Oliver (Red Turbo I), Adam Park (Green Turbo I), Katherine Hillard (Pink Turbo I), Justin Stewart (Blue Turbo II), Ashley Hammond (Yellow Turbo), TJ Johnson (Red Turbo II), Carlos Vallerte (Green Turbo II), Cassie Chan (Pink Turbo II), Zoltar (Phantom Ranger, What if?), Radietta Fanbelt (White Racer, Carranger exclusive)
Fourth row: Ashley Hammond (Yellow Space), TJ Johnson (Blue Space), Andros (Red Space), Zhane (Silver Space), Carlos Vallerte (Black Space), Cassie Chan (Pink Space), Zhane (Psycho Silver), Zhane (Psycho Red), Maya (Yellow Galaxy), Kai Chen (Blue Galaxy), Leo Corbett (Red Galaxy), Damon Henderson (Green Galaxy), Kendrix Morgan (Pink Galaxy I), Karone (Pink Galaxy II), Mike Corbett (Magna Defender), Cassie Chan (Pink Galaxy II, What if?), Mike Corbett (Red Galaxy, What if?)
Fifth row: Kelsey Winslow (Yellow Lightspeed), Chad Lee (Blue Lightspeed), Carter Grayson (Red Lightspeed), Joel Rawlings (Green Lightspeed), Dana Mitchell (Pink Lightspeed), Sieg (Beast-Demon Hunter I, GoGo-V exclusive), Kyoko Hayase (Beast-Demon Hunter II/Sieg-Jeanne, GoGo-V exclusive), Carter Grayson (Titanium Ranger I), Ryan Mitchell (Titanium Ranger II), Katie Walker (Yellow Time Force), Lucas Kendall (Blue Time Force), Wesley Collins (Red Time Force II), Eric Myers (Quantum Ranger), Trip (Green Time Force), Jennifer Scotts (Pink Time Force), Alex Drake (Red Time Force I), Wesley Collins (Quantum Ranger, What if?)
Sixth row: Taylor Earhardt (Yellow Eagle), Max Cooper (Blue Shark), Cole Evans (Red Lion), Merrick Baliton (Lunar Wolf), Danny Delgado (Black Bison), Alyssa Enrile (White Tiger)
Out of all them: Only MMPR, Zeo, Turbo, in Space, Lost Galaxy and Lightspeed Rescue had helmetless scenes, while Wild Force had helmetless morphs and Time Force had no helmetless scenes at all.
Next part: Disney era (Ninja Storm-Operation Overdrive)
Power Rangers (c) Saban/Toei/Nickelodeon/Marvista
Models (c) J.J. Wubs/cyborgpower.wz.cz