"Hope you enjoyed @RizzoliIslesTNT season 4 finale," Harmon tweeted Wednesday. "Season 5 eps 1&2 address our beloved Lee w/ love, honor & respect. Thank you @JanNash100."
Young's character, Det. Barry Frost, has been seen in recent episodes but was absent from the finale. The show paid tribute to the actor with an "In Loving Memory Of" placard in the first episode that aired after his death.
Rizzoli & Isles returns for Season 5 on June 17.