Cast of Kingdom

Frank Grillo portrays the role of Alvey Kulina in Kingdom. Alvey Kulina is a former MMA fighter who now runs a gym called Navy Street Gym. He is also a trainer and mentor to his sons, Jay and Nate, in their MMA careers.

Jonathan Tucker plays the character of Jay Kulina in Kingdom. Jay Kulina is Alvey's oldest son and is also an MMA fighter. He has a troubled past and struggles with addiction, but is determined to find success in the world of MMA.

Nick Jonas portrays the role of Nate Kulina in Kingdom. Nate Kulina is Alvey's younger son who is also an MMA fighter. He later becomes a prominent gay icon in the MMA community and faces various personal and professional challenges throughout the series.

Matt Lauria plays the character of Ryan Wheeler in Kingdom. Ryan Wheeler is a former MMA fighter who serves as a coach and mentor to the fighters at Navy Street Gym. He has a complicated relationship with Alvey and also battles personal demons.

Kiele Sanchez portrays the role of Lisa Prince in Kingdom. Lisa Prince is Alvey's girlfriend and a key figure in the management of Navy Street Gym. She is a strong and determined woman who supports the fighters and strives to handle the gym's operations effectively.

Natalie Martinez plays the character of Alicia Mendez in Kingdom. Alicia Mendez is a talented MMA fighter and love interest of Jay Kulina. She faces the challenges of being a woman in a male-dominated sport and aspires to make a name for herself in the MMA world.

Joanna Going portrays the role of Christina Kulina in Kingdom. Christina Kulina is Alvey's ex-wife and the mother of Jay and Nate. She battles addiction and mental health issues throughout the series and strives to rebuild her relationship with her sons and find her own path to recovery.

Levi Bowling plays the character of a Navy Street MMA fighter in Kingdom. As one of the fighters at Navy Street Gym, he trains and competes alongside other characters, showcasing his skills and determination in the world of MMA.