KJ Apa breaks his silence on 'Riverdale' dad Luke Perry's death

Luke Perry will always have a special place in KJ Apa's heart. 

The 21-year-old Riverdale star broke his silence on Perry's death in a short but sweet Instagram post on Thursday. Apa shared a photo of his TV dad enjoying a day out on the water, captioning the pic, "Rest in Love bro."

Perry died on Monday after suffering a massive stroke. Touching and heartfelt tributes from his Riverdale castmates have trickled in, as the show shut down production for a couple of days to allow time to process the loss. A source told ET that production resumed on Wednesday, along with counseling available to both cast and crew. 

The late actor was remembered with an "In Memoriam" title card at the end of Wednesday's episode, which executive producer Roberto Aguirre-Sacasa said was dedicated to Perry. He shared that all subsequent episodes of Riverdale will also be dedicated to the actor.

View this post on Instagram

Rest in Love bro.

A post shared by KJ Apa (@kjapa) on

Camila Mendes also remembered Perry on Instagram on Thursday, penning a sweet note about how the actor "took care" of the show's young cast. 

"He took care of us all. An authentic man who took pleasure in offering us his guidance and wisdom, his presence was healing," she began. "He had the ability to make you feel comfortable and at ease within seconds of seeing him. I will never forget the collective shock and distress we experienced when the news broke on set."

"We lost a dear friend. My heart hurts for his family and anybody who had the pleasure of knowing him," Mendes continued. "Rest in peace, Luke. Although you’re no longer around to wrap me in the warmth of your hug, I can still remember what it felt like. Whenever I think of you, I will remember that feeling."

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Luke Perry through the years
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Luke Perry through the years
American actor Luke Perry, circa 1992. (Photo by Kypros/Getty Images)
UNITED STATES - MARCH 09: Luke Perry (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 09: Luke Perry (Photo by The LIFE Picture Collection/Getty Images)
Luke Perry at the 7th Annual Nancy Susan Reynolds Awards, Regent Beverly Wilshire Hotel, Beverly Hills. (Photo by Ron Galella/WireImage)
UNITED STATES - MARCH 09: Luke Perry (Photo by The LIFE Picture Collection/Getty Images)
SYDNEY, AUSTRALIA - 1990s: American actor Luke Perry, who appears in the television series 'Beverly Hills, 90210', during a press conference at the Sydney Hyatt Hotel in the 1990s in Sydney, Australia. (Photo by Peter Carrette Archive/Getty Images)
UNITED STATES - MARCH 09: Luke Perry (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 17: Luke Perry (Photo by The LIFE Picture Collection/Getty Images)
Luke Perry at the 1999 Teen Choice Awards in Los Angeles. (Photo by Jeff Kravitz/FilmMagic, Inc)
Luke Perry at the Hollywood Women's Press Club's 51st Annual Golden Apple Awards, Beverly Hilton Hotel, Beverly Hills. (Photo by Ron Galella/WireImage)
Luke Perry and Jennie Garth at the 7th Annual Nancy Susan Reynolds Awards, Regent Beverly Wilshire Hotel, Beverly Hills. (Photo by Ron Galella/WireImage)
Luke Perry at the 3rd Annual Reid Rondell Association Celebrity Enduro Race, Saugus Speedway, Saugus. (Photo by Ron Galella/WireImage)
Luke Perry and Billy Wirth at the First Annual MTV Rock N' Jock B-Ball Celebrity Charity Baseball Game, Gersten Pavilion at Loyola Marymount University, Los Angeles. (Photo by Ron Galella/WireImage)
Luke Perry at the 1992 Carousel of Hope Ball, Beverly Hilton Hotel, Beverly Hills. (Photo by Ron Galella/WireImage)
Luke Perry and Minnie Sharp at the Preview for 'Sunset Blvd', Shubert Theatre, Century City. (Photo by Ron Galella/WireImage)
Luke Perry and Elle MacPherson at the 2nd Annual Kids for Kids Family Carnival Benefit Elizabeth Glaser Pediatric AIDS Foundation, Industria Superstudio, New York City. (Photo by Ron Galella/WireImage)
Faye Dunaway and Luke Perry during Elizabeth Glasser Pediatric Aids Foundation in New York City, New York, United States. (Photo by KMazur/WireImage)
UNITED STATES - NOVEMBER 10: Luke Perry is on hand at Planet Hollywood party celebrating his return to the TV show 'Beverly Hills 90210.' Perry, who donated the guitar that hung on wall of his room in earlier episodes of the series to the restaurant's memorabilia collection, says he can't play the instrument. (Photo by Richard Corkery/NY Daily News Archive via Getty Images)
Luke Perry at the 1999 Teen Choice Awards in Los Angeles. (Photo by Jeff Kravitz/FilmMagic, Inc)
Luke Perry at the Star-Studded Kick-Off Party for The Rock 'N' Road Rally Hosted by Astrella Leitch & Jack Healey, Pier 59 at Chelsea Pier, New York City. (Photo by Ron Galella/WireImage)
Luke Perry during Open Range Hollywood Premiere at Arclight Cinemas in Hollywood, California, United States. (Photo by Chris Weeks/FilmMagic)
Luke Perry and Tiffani Thiessen at the 2004 Target A Time for Heroes Celebrity Carnival to benefit the Elizabeth Glaser Pediatric AIDS Foundation (Photo by SGranitz/WireImage)
UNITED STATES - NOVEMBER 04: California Cart Trophy 2005 'Art of Cart' event in Long Beach, United States on November 04, 2005 - Luke Perry and Courtney Hansen at the California Cart Trophy 2005 'Art of Cart' event at the Queen Mary. (Photo by Mike FANOUS/Gamma-Rapho via Getty Images)
DARLINGTON, SC - MAY 13: Actor Luke Perry attends the NASCAR Nextel Cup Series Dodge Charger 500 on May 13, 2006 at Darlington Raceway in Darlington, South Carolina. (Photo by Grant Halverson/Getty Images for NASCAR)
LAS VEGAS - NOVEMBER 17: Actor Luke Perry arrives at Barbra Streisand's performance at Planet Hollywood Resort & Casino Grand Opening Weekend on November 17, 2007 in Las Vegas, Nevada. (Photo by Bruce Gifford/FilmMagic)
Luke Perry attends The Simpsons Treehouse Of Horror XX And 20th Anniversary Party on October 18, 2009 in Santa Monica, California. (Photo by Dr. Billy Ingram/WireImage)
TODAY -- Pictured: (l-r) Meredith Vieira, Luke Perry and Hoda Kotb appear on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
BODY OF PROOF - 'Dark City' - When a plane crashes in Philadelphia due to a gunman opening fire while aloft, the entire team of Megan, Kate, Tommy, Adam, Curtis, Ethan, Riley and Stafford must go into disaster mode. Since the crash hits the city's main power grid, Megan must conduct autopsies on the victims during frequent blackouts, but then one of the bodies goes missing. Meanwhile, Tommy and Adam are in a serious car accident while trying to investigate, on 'Body of Proof' airs TUESDAY, MAY 7 (10:01-11:00 p.m. ET) on the ABC Television Network. (Photo by Richard Foreman/ABC via Getty Images) LUKE PERRY
LOS ANGELES, CA - NOVEMBER 04: Luke Perry arrives for the Hallmark Channel Presents 'Northpole' Premiere Screening at La Piazza Restaurant on November 4, 2014 in Los Angeles, California. (Photo by Gabriel Olsen/FilmMagic)
LAS VEGAS, NV - DECEMBER 05: Actor Luke Perry appears during the 'Outside The Barrel' show with Flint Rasmussen at Rodeo Live during the National Finals Rodeo's Cowboy Christmas at the Las Vegas Convention Center on December 5, 2015 in Las Vegas, Nevada. (Photo by Mindy Small/Getty Images)
NEW YORK, NY - MAY 19: Luke Perry of the series 'Riverdale' attends The CW Network's 2016 New York Upfront at The London Hotel on May 19, 2016 in New York City. (Photo by Daniel Zuchnik/WireImage)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Luke Perry -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - OCTOBER 08: Luke Perry attends the Build Series to discuss 'Riverdale' at Build Studio on October 8, 2018 in New York City. (Photo by Dominik Bindl/Getty Images)
NEW YORK, NY - OCTOBER 07: Luke Perry speaks onstage at the Riverdale Sneak Peek and Q&A during New York Comic Con at The Hulu Theater at Madison Square Garden on October 7, 2018 in New York City. (Photo by Andrew Toth/Getty Images for New York Comic Con)
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