Lego Masters Jr.: Story, Cast and Series Facts

Story and premise

LEGO Masters Jr. brings imagination, design and creativity to life when junior LEGO enthusiasts (ages 9-17) are paired with a celebrity partner as they go head-to-head with infinite possibilities and an unlimited supply of LEGO bricks. The teams will compete against each other in ambitious brick-building challenges to be crowned the country's most talented amateur LEGO builder. In each episode, the junior builders and their celebrity teammate will work to impress the judges with their incredible creations and then, during the finale, the top teams will face off to win the ultimate LEGO trophy, a $50,000 grand prize and the prestigious title of LEGO Masters Jr.

Series details

• Title: Lego Masters Jr.
• Format: Game Show
• Language: English
• Premiere date: 2025-08-18
• Status in TVmaze: To Be Determined
• Network listed by TVmaze: FOX
• Network country: United States
• Typical episode runtime: 60 minutes
• TVMaze ID: 85820
• IMDb ID: tt37536038
• TVDB ID: 465606

Cast and credited roles

• Kelly Osbourne — Host
• Amy Corbett — Judge
• Boone Langston — Judge

Seasons in the TVmaze catalogue

• Season 1: premiered 2025-08-18; final listed air date 2025-09-08; episode order: 4.

Source and licence

Adapted from Lego Masters Jr. on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.