Succession but make it korean

Logan Roy

Kendall Roy

Roman Roy

Siobhan (Shiv) Roy

Connor Roy ("who was interested in politics from a very young age") 

Tom Wambsgans

Greg Hirsch (Cousin) 

Marcia Roy (Wife of Logan Roy) 

Gerri Kellman (General Counsel and Interim CEO of Waystar Royco)

Willa (Former high-end escort and wife of Connor Roy) 

Ewan Roy (Older brother of Logan Roy) 

Frank (Former COO of Waystar Royco) 

Karl (CFO of Waystar Royco)

Karolina (Head of PR at Waystar Royco)

Hugo (PR at Waystar Royco)

Lukas Mattson (CEO and founder of GoJo) 

Jess (Kendall Roy's assistent) 

Kerry (Assistant and mistress of Logan Roy)

Stewy Hosseini (Investor and childhood friend of Kendall Roy)

Lady Caroline Collingworth (Ex-wife of Logan Roy and Mother of Kendall, Siobhan and Roman Roy) 

Rava Roy (Kendall Roy's Ex-wife)

Cyd Peach (Senior Advisor of ATN) 

Sandy Furness (Father to Sandi Furness, in wheelchair due to late stage syphilis) 

Rhea Jarrell (CEO of PGM and briefly of Waystar Royco, former lover of Logan Roy)

Nan Pierce (Head and founder of Pierce Global Media PGM) 

Naomi Pierce (Boardmember of PGM, former lover and drugpal of Kendall Roy)

Sandi Furness (Daughter and later voice of Sandy Furness) 

Mark Ravenhead (News Anchor at ATN, suspected Nazi) 

Nate Sofrielli (Campaign Advisor to Gil Eavis and lover of Siobhan Roy) 

Jeryd Mencken (Corrupt presidential candidate, later President) 

Gil Eavis (Democratic Senator) 

Lawrence Yee (Founder and CEO of Vaulter) 

Comfry Pellets (PR of Kendall Roy and brief girlfriend of Greg Hirsch) 

Ebba (Head of PR at GoJo and receiver of half a liter of blood from Lukas Mattson) 

Tabitha Hayes (Former girlfriend of Roman Roy and famous hookup to Tom Wambsgans)

Peter Munion (Husband of Lady Caroline Collingsworth, stepfather of Kendall, Siobhan and Roman)