the TV series had its moments, and certainly had potential... it was basically all about Kung Lao and Shang Tsung. With appearances from MANY of the favourites. Raiden was in it a lot as Kung Lao's guide/mentor. Kitana, Mileena, of course Shao Khan, Reptile, Sub-Zero and Scorpion (who was in the show already Shang Tsung's slave) all makes appearances. Kristanna Loken - the Terminatrix - started out in this series.
There was also an animated series... it lasted a season or two... was acceptable for a Saturday morning cartoon.
Mortal Kombat remains my absolute favourite fighting game series - i have owned or do own every game released for the major consoles... MK all the way through to MK 7 (Armageddon).
Favourite character from the original - Raiden.
But from MK2 onwards its been Mileena all the way. all because of her MK2 fatality where she sucks the foe in through her freaky mouth, then spits them out as chunks. - oh and of course being a super-fast fighter with easy to pull-off special moves that are difficult for opponents to block effectively.
Honourable mentions to Kitana, Sub-Zero, Scorpion, MK4 Reptile (he's out of the ninja-clone uniform in this one) Sindel (in 3/trilogy where she could fly at least), Rain and Tanya ( i love treacherous characters like her) - Winning MK 4 with Tanya was by far the coolest (***SPOILER - she tricks Liu Kang into attacking the god Shinnok - who blasts him into pieces. "Don't You Get it Liu Kang, this is a trap.... mwahahaha" ***).
From a story perspective i really like the Sonya/Kano thing. And the rumoured geneologies of several of the characters... the rumour that Kitana is Raiden's mother, that Mileena really was Kitana's twin sister in spite of what we're told about Mileena's origins - and then ending up Queen of the Mutants alongside Baraka.