updated 04/01/2013 AT 1:00 PM ET
•originally published 04/01/2013 AT 1:55 PM ET
The show must go on for the cast and crew of Glee.
The absence of Monteith’s character, McKinley High graduate Finn, will be explained to viewers.
“I am so proud of Cory Monteith and love and support him 100 [percent],” Glee creator Ryan Murphy Tweeted Monday.
Meanwhile, 20th Century Fox TV, which produces the musical comedy, also released a statement of support for the actor: “Cory is a beloved member of the Glee family and we fully support his decision to seek treatment. Everyone at the show wishes him well and looks forward to his return.”
Monteith’s rep released a statement to PEOPLE on Sunday, explaining that the star, 30, “has voluntarily admitted himself to a treatment facility for substance addiction.”