The developers created Tekken 7 to, on the one hand, allow players to feel like martial arts masters without getting up from the couch, and on the other hand, to earn their "bread and butter". Perhaps this explains the presence in the game, for which we already paid, "blocked" characters.
If you bought the game and launched it you would find such Tekken 7 secret characters as Fahkumram, Leroy, Negan, Armor King, Lei, Noctis, Eliza, Geese, Anna, Marduk, Julia, Zafina, Ganryu. We only called them "secret characters" because they cannot be played in the standard version of the game.
These fighters are also known as Tekken 7 hidden characters or Tekken 7 unlockable characters. You cannot “unblock” any of them without pay-to-play content. In the case of Eliza, it had to be purchased as a pre-order for Tekken 7 itself before its release in 2017 or 30 days after.
All other Tekken 7 missing characters become available after purchasing Season Pass 2 or Season Pass 3 in the lobby of the game.
How to unlock characters in Tekken 7
Just buy them, if you want to choose them among all others Tekken 7 secrets. Therefore, the answer to the questions of how to unlock characters in Tekken or how to unlock Negan in Tekken 7 without money is - "there is no way".
The only truly "unlockable" character in Tekken 7 without donations is devil Kazuya.
How to unlock devil Kazuya
You can do this by triggering the evil mode of Kazuya Mishima. You need to use Kazuya's Rage Art (press R1 on PS4 or RB on Xbox One). After it, he will transform into devil Kazuya for a short time. This is currently the only way to play for this character. But as usual, Eliza and the devil Kazuya are still unlockable characters in Tekken 7.
So, if you ask me how to unlock Eliza Tekken 7 or how to get Eliza in Tekken 7, I will say - "No way if you aren’t Katsuhiro Harada".
How to unlock Violet
Violet isn't really a new character. In fact, this is just a costume, a shell for Lee Chaolan. They have very few differences. So, to play as Violet all you need to do is to select Lee and to choose Violet's costume. After this, you will play for Violet instead of Lee Chaolan.
How to unlock Negan and Julia
Negan and Julia are both "guest" and "native" characters for Tekken 7. Negan fought for victory in the Iron Fist Tournament after he managed to survive and escape from zombies in the United States. Julia is the daughter of one of Tekken's most famous characters. You can read more about her in Dashfight's how-to-play guide here.
Each of these characters could be purchased one at a time from the in-game store. You can enter it for purchases from the start page of the game. As of 10/7/20, they are not available for the PS-version. Perhaps this is due to the planned release of Tekken 7 Season 4 by November-December 2020.
So, how to get Negan in Tekken 7 - now it is almost impossible to do it legally.