After appearing in several short films, LaLonde played Rece in
Asbury Park (2021). In 2022, he starred in ''Deer Camp '86
as Wes. He also appeared in Criminal Minds: Evolution'' (2022) as Gael Bruneau. In 2023, he rose to prominence playing Cole Walter in Netflix's series,
My Life with the Walter Boys (2023–present). On November 20, 2025,
Deadline announced that LaLonde would appear in
Katherine Center’s
The Bodyguard film adaptation,
Guarding Stars. ==Filmography==