Although the Rockin' Romance Jem doll has actually shown up, and didn't contain any cassette, it's pretty likely that some of these dolls would, like the Stingers who had quite enough songs and even their own theme.

• 4004 [Pictures by Jeff Bolton]
  "JEM's ready for a rockin' romance and she has the most outrageous hair ever!".

  This is the only one of the unreleased dolls that has actually shown up complete in it's box. The first time this doll is known to have been available for sale on the internet, was in January 16 of 1999, when one was put up for auction at eBay, with the title "Jem Rockin Romance MIB". The location of the seller, was Rhode Island, and this doll was made in Pawtucket, Rhode Island. It has very long crimped blonde hair. After that, several has shown up and sold pretty expensive. It doesn't seem to include a cassette. Prototype. Prototype box.

  In the cartoon:
  Introduced in the episode "The Day The Music Died". Read cartoon character description.
  Hair: The doll has the blonde hair visible even when she is Jem. The doll's hair is wavy, while the cartoon version isn't.
  Outfit: The doll doesn't wear the star earrings as in the cartoon. Jem has no tights in the cartoon.

  Contents: Dress. Hair tie. Tights. Necklace. Earrings. 2 bracelets. Shoes. Microphone. A picture of Rio. Hairpick.

  
  

• American Beauty Jem 4007
  "JEM's new star-spangled look is sure to set off fireworks!".

  Prototype.

  In the cartoon:
  Introduced in the episode "Rock N' Roll Express". Read cartoon character description.
  Hair: The doll has the blonde hair visible even when she is Jem. The doll's hair is wavy, while the cartoon version isn't.
  Outfit: The dolls hairpiece looks a little different, the earrings have only one star instead of three, has tights, and blue shoes instead of black.

  Contents: Dress. Hairpiece. Tights. Boa. Earrings. 2 bracelets. Shoes. Microphone. Hairpick.

  
  

• Astral
  "Astral is a magician who creates magical stage shows for JEM and the Holograms!".

  Was first going to be called Magic.

  In the cartoon:
  Introduced in the episode "That Old Houdini Magic". Read cartoon character description.
  Outfit: The hair band was yellow instead of pink and much smaller in the cartoon, the earrings were yellow instead of blue, the jacket had alot of white in it.

  Contents: Hairpiece. Earrings. Jacket. Top. Shorts. Tights. Shoes. Dove. Hairpick.

  
  

• Regine
  "Famous designer, Regine, keeps the band in top fashion with her fabulous creations!".

  Was first going to be called Paris. Prototype.

  In the cartoon:
  Introduced in the episode "Straight From The Heart". Read cartoon character description.
  Outfit: The doll seems to have much longer hair, and the doll's hairpiece has black dots. Then there are some small differences in the dress design.

  Contents: Hairpiece. Earrings. Dress. Armbands. Tights. Shoes. Briefcase. Hairpick.

  
  

• Hollywood Jem
  

  In the cartoon:
  Introduced in the episode "Hollywood Jem Part Two: And The Winner Is...". Read cartoon character description.
  Hair:
  Makeup:
  Outfit:
  Accessories:

  Contents: Dress. Pumps. Necklace.

  
  

• Riot of the Stingers
  The charismatic leadsinger of the group is a perfectionist who hopes to convince Jem she is destined to be his. Artwork. [Picture by Jem's Space]

  In the cartoon:
  Introduced in the episode "The Stingers Hit Town Part 1". Read cartoon character description.
  Hair: Appears to be somewhat curlier than what we could see in the cartoon.
  Outfit: This fashion appeared from the episode "The Stingers Hit Town Part One" in the cartoon. The pants didn't look this glittering in the cartoon.
  Accessories: In the cartoon he usually didn't play a guitar, but when he did it looked different in shape.

  Contents: Jacket. Shirt. Pants. Boots (or shoes with a fabric cover). Guitar. Hairpick (naturally). Stand.

  
  

• Rapture of the Stingers
  The guitar player who loves to combine her interest in the supernatural with playing mind games on people. Was first going to be called Fantasy. Artwork. [Picture by Jem's Space]

  In the cartoon:
  Introduced in the episode "The Stingers Hit Town Part 1". Read cartoon character description.
  Outfit: This fashion called "RAP-1", appeared from the episode "The Stingers Hit Town Part One" in the cartoon.

  Contents: Dress. Tights. Earrings. 2 bracelets. Pumps. Guitar. Hairpick. Stand.

  
  

• Minx of the Stingers
  The german member of the group, who plays synthesizer and loves stealing men from other women. Artwork. [Picture by Jem's Space]

  In the cartoon:
  Introduced in the episode "The Stingers Hit Town Part 1". Read cartoon character description.
  Outfit: This fashion called "MX-1", appeared from the episode "The Stingers Hit Town Part One" in the cartoon. The belt had a different design in the cartoon. The shoes weren't pumps byt high boots in the cartoon.
  Accessories: She plays synthesizer in the cartoon.

  Contents: Hat. Top. Pants. Pumps. Tambourine. Hairpick. Stand.

  
  

• Graphix
  The Stingers/Misfits obnoxious graphic art designer.

  Contents: Shirt. Skirt. Pants. Shoes. Unknown accessory. Hairpick. Stand.

  
  

• Male doll
  A male head with long purple hair has appeared on dolls that consist of Hasbro's Jem doll leftover parts, called Super Stars, by Star Merchandising, and showed up in Sears outlets. This may have been planned to be a new edition of Rio, the new character Riot, or even Craig since it has blue eyebrows. It could also have been an unreleased character from Hasbro's other doll line Maxie's World.