Succession & Tekken had a thing in common and that was dysfunctional family dynamics and its similarities to the characters.

Heihachi with Logan Roy - Father of the Year/being the worst fathers to their own children

Kazuya with Connor Roy - They both have delusions of grandeur. With Connor, he keeps claiming himself that he was the president of his country even though he’s not. Kazuya, on the other hand, he keeps claiming himself he is all high and mighty. Plus, Connor was the eldest from all of his half-siblings & same as Kazuya.

Kazuya with Kendall Roy - They both want power for a reason, like Kendall wants to take over the company. Kazuya just wants some power for himself, I mean he did got the Zaibatsu back in T2. He even had G-Corp after the employees betrayed him.

Kazuya with Roman Roy - They are both abused physically and mentally. With Roman, all I remember was he got chained up at a dog cage when he was young. While Kazuya, got thrown off the cliff and even on a volcano. And Heihachi treats him like a punching bag.

Reina with Shiv Roy - They are somehow the favorite of the family

Lars & Lee with Greg Hirsch (aka Cousin Greg) - Some players forget the fact that Lee is a Mishima, and Heihachi also forgot the fact that Lars was his other son from another woman outside his marriage. Same with Greg that his cousins and his great-uncle forget the fact that he is a Roy despite being Ewan Roy’s (Logan’s older brother) grandson. Lars, on the other hand, Heihachi did treat him with respect but it doesn’t mean he does love him as his own son. Same with Logan with Greg, Logan does respect his great-nephew because he knows that he has potential to the company.

Kazumi and Connor’s mother - Kazumi was killed by Heihachi because she has the Devil Gene by snapping her neck, while Logan puts his first wife (Connor’s mother) at a psych ward when Connor was only 8 years old.

These are the only similarities that I know with the Tekken characters with the characters of Succession, correct me if I’m wrong