Saville began his youth career in his hometown of Anchorage, before entering the North American junior system with the Colorado Thunderbirds of the
Tier 1 Elite Hockey League (T1EHL) in 2016. He then joined the
Minnesota Magicians of the Tier II
North American Hockey League (NAHL) for the 2017–18 season, before moving to the
Tri-City Storm of the Tier I
United States Hockey League (USHL) for
2018–19. During his brief tenure in Tri-City, Saville was named
USHL Goaltender of the Year and won the
Dave Peterson Award from
USA Hockey, ultimately leading the Storm to their second
Anderson Cup regular-season title. At the conclusion of his time in Tri-City, Saville was drafted in the fifth round of the
2019 NHL Entry Draft by the
Vegas Golden Knights. Saville played three seasons of
collegiate hockey at the
University of Nebraska at Omaha. In his time with the Mavericks, Saville posted a career .907 save percentage and 2.78 goals against average, being named to the
National Collegiate Hockey Conference (NCHC)
honorable mention All-Star team for 2020–21. Saville signed his three-year entry-level contract with Vegas on March 18, 2022, and joined Vegas'
American Hockey League (AHL) affiliate, the
Henderson Silver Knights, shortly thereafter. Saville was recalled by the Golden Knights multiple times during the
2023–24 season due to injuries, dressing as the backup to
Logan Thompson and
Jiri Patera; however, he did not appear in any games. After missing the entire 2024–25 season due to injury, Saville signed a one-year contract with the
Ontario Reign, the AHL affiliate of the
Los Angeles Kings, on July 17, 2025. ==International play==