Cousins for Life was officially announced on March 6, 2018 by Nickelodeon. It was confirmed to consist of 20 episodes. It premiered on November 24, 2018 as a sneak peek and officially premiered on January 5, 2019.
Production for the first season began on June 5, 2018 and ended on December 7, 2018.
The buddy comedy centers on 12-year-old cousins Stuart and Ivy, best friends who come from very different backgrounds, and learn to navigate life under one roof with their families. After Stuart's mom is deployed overseas, his fun-loving dad, Clark decides to move the family to Portland to live with his uptight brother, Lewis, and his family which includes Stuart's confident, socially-active cousin Ivy and her younger, overly-curious brother Leaf. Now living in a brand new city, Stuart embarks on a variety of endeavors with Ivy that lead to hilarious adventures. Although, the cousins do not always see eye-to-eye, Ivy and Stuart learn they are better together, and when they team up, they are unstoppable.
- Dallas Young as Stuart
- Scarlet Spencer as Ivy
- Ron G. as Lewis
- Ishmel Sahid as Clark
- Micah Abbey as Leaf
- Emma Shannon as Millie
- Jolie Hoang-Rappaport as Gemma
- Tait Blum as Jackson
- Stephanie Lemelin as Charlotte
- Carsyn Rose as Tessa