Logan Roy kids names are Connor Roy, Kendall Roy, Roman Roy, and Siobhan Roy. The three sons and one daughter are from his two different marriages.

Kendall, Roman, and Siobhan are the heart of Succession. They fight when they are desperate for their father's favor and are united when they're all fed up with him. 

Connor Roy

Connor Roy is the eldest son of Logan from his first marriage. Though being the older sibling he never got a shot at running the business.

Despite his consistent and continuous efforts, Connor has the least connection with his dad. Thus, he feels deeply insecure about his status in the family. So, he overcompensates by overreaching in aspirations, like running for president.

He was never like the rest of the Roys. As we all know that he is the only half-brother of other siblings he grows up with the stress of losing his mother at a young age. So, he grew up on his own.

Being the son of Logan he did not get any love, care, attention, and affection from him. Even he considered not attending his son's wedding. Connor was only the son to attend the birthday of his father but he did not pay any attention to that. 

He was never taken seriously by anyone in his father. For not being like his dad he is bullied by other members. Though trying to impress his father and siblings he was not taken seriously. 

From a young age, he claims to have been interested in politics. He keeps on focusing his time on making his career and achieving his own personal goals.

Kendall Roy

Kendall Roy is the second eldest son of Logan from his second marriage. Kendall is prime to lead Waystar when Logan retires.

Yet, he has to gain the full trust of his father. He went to the Buckley School and Harvard University and used to party and have cocaine together. He had a cocaine problem and even had to join the rehabilitation center.

After battling with his father for various seasons it seems that he does not want the role of CEO. 

Roman Roy

Roman Roy is the youngest son of Logan. Roman is the co-CEO of Waystar Royco along with his elder brother Kendall.

Roman has always been the most empathetic character in the show. He secretly works with his father and gained various knowledge about different topics.

In the early days of the show, he played the part of court jester, making crude remarks to his coworkers and subordinates, and criticizing others due to a deep insecurity brought on by his father's parental tactics.

As time passes, he learned to secure major deals for the company from his father and also he becomes more tactful. Regrettably, he is still immature.

Siobhan Roy

Siobhan Roy is known by her nickname Shiv. Siobhan is the youngest child and the only daughter in the Roy family.

She tried to run far away from the business and strike out on her own in politics. In politics, she has an amazing talent and competence. In a sad twist of fate, earning her father's adoration and even recognition, along with working in the family company after being virtually ignored her entire life, costs her her political career.

When her parents got separated she moved to America. She started working for Gil Eavis after working as a political consultant for Joyce Miller.