When writers are creating a good support character for their stories, they're looking for strong qualities that will make that character not only stand out, but blend well with the main character. This is no different with great video game stories, where the challenge is magnified to deliver a character that is believable and yet one that you can grow attached to. Say, for example, you have a thrilling space opera where the fate of the galaxy depends on your every decision, for better or worse. You're going to want a character in your corner who has the know-how to aid you in battle and who also knows her way around a shotgun. Enter Tali'Zorah, of the Mass Effect series. Tali is the alien companion who assist the protagonist, Commander Shepard, in their effort to save the galaxy from an all-powerful race known as the Reapers from wiping out every sentient life. Tali does all this and more as she serves not only as the team's resident tech expert, but as a competent fighter who can hold her own in combat. And all this from her hermetically-sealed body suit.
Because of her dynamic growth throughout the series and her natural place as part of Shepard's team, Tali is the one of the best examples of a supporting character in a video game. Her great qualities make her shine independently from other characters but also mesh well into the whole of the team. This all stems from her immense depth of character, driven by her desire to help her people and save every life that she can. So, in summary: Tali'Zorah freaking rocks.
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