All of the characters in this are characters that are either...

A.) Robots B.) Androids C.) An AI of some Sort.

None are Bender, No Star wars characters, None are Cortana

1.) The answer is Legion from Mass effect 2-3. Answered by /u/gerbil_george

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2.) The answer is EVE from Wall-E, answered by /u/LambentEnigma

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3.) Music

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4.) The Answer is Splash Woman from Mega Man 9, answered by /u/anyalemon

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5.) Movie - Before 2000, Lives on a spaceship

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6.)TV Show - Before 2000 - Feminine

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7.)Video Game - 'Antagonist' - Was on a space Station.

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8.)The answer is Rosie the Robot Maid from the Jetsons! Answered by /u/pandawithwings

Since we have not had a correct answer. Some Hints.

3.) They are a band that is still around today.

4.) They are one of many antagonists in a game.

5.) The Movie was made Before 1960.

6.) The Robot has only appeared Once.

7.) The 'Antagonist' is in every game of the franchise.

8.) The character is not androidic [Non-Humanoid looking]