Well kids I am an Anime fan as you probably tell from my description on my profile and well idk but here is the thing this is what I see people from Voltron as from some of my favorite Anime's okay so don't get butthurt and Enjoy~Yoru
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Shiro:

Professor Stien from Soul Eater. I see Shiro as Professor Stien because both of them are super smart ,they care about the people around them, see the best abilities in people, teach others around them ,and they both have a traumatizing past that leads to PTSD and or Insanity.

Keith:

Shoto Todoroki from My Hero Academia because they are really emo and arrogant. Both of them never felt like they had a family that loved them because a figure in their life mistreated them, died or was never there for them. They both don't really get jokes or sayings that easily. Both of them are really BIG introverts who train A LOT to get better and better for their dreams and stuff

Lance:

Yato from Noragami. I see Lance as Yato from Noragami because they both aspire to leave an impact and get rich and famous, they both care deeply for the people around then and treat them as a second family, sometimes they feel down for not getting the recognition they feel they deserve so it takes a toll on them emotionally but that doesn't stop them from trying until they pull it off.

Hunk:

Soma Yukihira from Food wars. I see Hunk as Soma because they are passionate about what they do, They always try to make the best out of a situation even if it is a bad one, try and give their opinion by using their knowledge, care about their friends well beings m, and have a Huge passion to cook

Pidge:

Ritsu from Assassination Classroom. I see pidge as Ritsu because they both have so much knowledge and use it for good, They both try to be a big help for their friends, both are optimistic to a level, and are sensitive about their feelings weather they get seen or disregarded.

Matt:

Edward Elric from Fullmetal Alchemist. I see Matt as Edward because they both just want their family back, Always are on adventures, and know what they are doing most of the time.

Lotor:

Sebastian Michaelis from Black Butler. Because they want to help but they do it in such evil ways, they are perfect in like everything they do, speak nicely and are proper, and are flawwwlesssss.

Allura:

Mikasa Ackerman from Attack on Titan. I see Allura as Mikasa because they both just want to save the world, are super fucking strong, care deeply about the people they are friends with, won't take shit from anyone , and will make sure that everyone is okay, and healthy. They can both be a little brash and cold at times though.