Spain

 
Jem Verdaderamente Fantástica
It appears that there was only one run of the dolls.  It still remains to be seen if there were fashions or playsets made.  Packages are in Spanish, and say Made In Valencia, Spain by MB España.  (They retain the Hasbro logo on the front of the box). Interestingly, mine was bought in Chile- which gives me the impression that they were not only available in Spain, but South and Central America (possibly Mexico, but it seems doubtful as Jugetes Con Vida had there own line there).  

A sample of some interesting differences:

  • The bodies are very distinguishable in that the back will read "Made In Spain".  My Jem/Jerrica had arched feet as well.  Otherwise they resemble Hong Kong/Chinese dolls. 
  • Most of the fabrics/clothes that I've seen look to be very similar or the same as Hong Kong/Chinese dolls.
  • The instruments & combs have some differences
  • The shoes are *very* peculiar, in that they have a rubbery texture, quite squishy, very obviously different from regular Jem shoes.
  • 1st Ed. Jem/Jerrica also comes with a cassette.
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    So far, I only have one doll I can tell you about:
    Spanish Jem/Jerrica

    Thanks to Laura (Badgerprincess) and Taffeta I have some information and pictures of the following:
    Spanish Pizzazz
    Spanish Kimber

    And thanks to Felipeaino here is 

    Spanish Shana

    I have seen the following dolls, check Totally Jem for more info and pics on them!
    Spanish Stormer
    Spanish Roxy
    Spanish Shana
    Spanish Aja
    I do not know if Spanish Rio exists.
    The Show:   David from The Jem Player has emailed me some clarifying information about the Jem show in Spanish language.  There were two dubs in Spanish.  A Mexican cast recorded the episodes of Jem, as well as My Little Pony, GI Joe and other Sunbow shows, in Los Angeles.   This dub was aired in Mexico, Central America and South America.  In 2008, a Spanish television station replayed these Mexican (or Latin American) dubs.  Spain also had it's own dub of the show, which certainly aired in Spain, and possibly other Spanish speaking countries.   I do not know if those songs were dubbed or not, but oddly enough there were two different voice actors for Jem and Jerrica! 
    Other Jem Items:  I don't know of any yet, any information is welcome!