Friends of St. John have taken to social media to share tributes of the two-time Emmy winner. We've compiled those tributes below. You can read more about the life of Kristoff St. John and his passing here.
"The lights have diminished and the sound around me has been muted with the exception of the sound of hearts breaking due to the loss of a great human being," wrote The Bold and the Beautiful's Obba Babatundé (Julius Avant)
The lights have diminished and the sound around me has been muted with the exception of the sound of hearts breaking due to the loss of a great human being. May his soul rest and his spirit soar R.I.P Kristoff #family @CBSDaytime @CBSTweet @YandR_CBS
— Obba Babatundé (@ObbaBabatunde) February 4, 2019
In a statement, Bryton James (Devon Hamilton) said, "There are no words for my devastation. For the last 15 years, Kristoff St. John has been my other father, my friend and in the beginning, my reason for feeling as though I belonged in the Y&R family. He was an unbelievable example of strength, given what he endured over the course of his life. But most importantly, he taught us all every single day how to choose to have fun with life no matter what. I will miss him forever... His daughters Lola and Paris will always have me as family."
"An infinite number of hearts are broken because of the passing of Kristoff St. John," Eileen Davidson (Ashley Abbott) said in a statement released to People. "Kristoff was a loving kind generous sweet hilarious gifted human. He left an indelible mark on all who were blessed to know him. I am so grateful to have been able to work with him and laugh with him. My deepest condolences go out to his family and especially his children, who I know he loves so much."
.@SherylUnderwood reacts to the news of fellow @CBSDaytime star Kristoff St. John's sudden passing Sunday: "I believe Kristoff St. John died of a broken heart." pic.twitter.com/yYQmUyv9aj
— The Talk (@TheTalkCBS) February 4, 2019
Simply heartbroken. You were and always will be loved @kristoffstjohn1.
— Ashley Jones (@AshleyAJones) February 4, 2019
Rest peacefully, my friend.
Wrote Tyler Christopher (Stefan DiMera, Days of our Lives; ex-Nikolas Cassadine, General Hospital): "Thank you for your friendship when I was having a difficult time some years ago. You didn't even know me yet you dropped whatever you were doing to meet with me and share your spirit in hopes that it may lift mine. A rare commodity. Rest my friend."
@kristoffstjohn1 thank you for your friendship when I was having a difficult time some years ago. You didn't even know me yet you dropped whatever you were doing to meet with me and share your spirit in hopes that it may lift mine. A rare commodity. Rest my friend.#kristoffstjohn
— Tyler Christopher (@Tyler2929) February 4, 2019
I will never forget u & will never be the same now that u are gone. We spent our time together filled with ridiculousness & practical jokes because there were few things that we liked more than to make each other laugh. U remember this one? Rest my friend. U r now at peace. ?? pic.twitter.com/ehoFZxJ2cb
— Daniel Goddard (@DanielGoddard) February 4, 2019
"Kristoff St. John was one of the kindest most generous men I've ever known," wrote Jon Lindstrom (Kevin Collins/Ryan Chamberlain, General Hospital). "I pray he's found the peace he was seeking. R.I.P. This sweet prince was loved and he will be missed."
Kristoff St. John was one of the kindest most generous men I've ever known. I pray he's found the peace he was seeking. R.I.P. This sweet prince was loved and he will be missed. #RIP @kristoffstjohn1 #KristoffStJohn pic.twitter.com/F9SSfx4cW1
— Jon Lindstrom (@thejonlindstrom) February 4, 2019
I'm so sad to hear this news. I had the pleasure of working across the hall from him for years. He was such a truly lovely and kind person. I have no words. My deepest condolences to his family and friends. What a true loss. https://t.co/2Y5DHxsOBP
— Linsey Godfrey (@linseygodfrey) February 4, 2019
So utterly devastated over the loss of @kristoffstjohn1 Sending so much love to his family. RIP ????
— Kelly Kruger (@KrugerKelly) February 4, 2019
Heartbroken to read this terribly sad news. Kristoff was a lovely soul and always so kind to me during my time at #YR. Sending love and my condolences to his family and closest ones. ????
— Jessica Collins (@JessicaCollins) February 4, 2019
Kristoff St. John was such a kind man and a very dear friend to me and so many at Y&R. My late husband Ron and Kristoff just adored each other too. He will be missed terribly. pic.twitter.com/9tQOpoRiNx
— KATE LINDER (@KATELINDER) February 4, 2019
So saddened by this news! My heart and prayers for @kristoffstjohn1 , his family, and loved ones. Such a kind and lovable soul! Tremendous loss for the Y&R family and for those who know him. Peace, for you @kristoffstjohn1 ??
— Jordi Vilasuso (@JordiVilasuso) February 4, 2019
So heartbreaking. Kristoff was such a loving, kind, welcoming, funny, wonderful soul. Can't believe this news. Rest In Peace, beautiful man.
— Melissa Claire Egan (@MClaireEgan) February 4, 2019
Thank you all for your condolences for my dear friend Kristoff.We all loved him so much. Brokenhearted ?? #RIPKristoffStJohn #WillAlwaysLoveYou
— Melody Thomas Scott (@MelodyThomasSco) February 4, 2019
My condolences to @kristoffstjohn1 friends, family, and everyone at @YR_CBS I had the pleasure of working with him and candidly speaking w/ him numerous times. We lost a good one. #GodSpeed. pic.twitter.com/0ITPpqtB8Z
— Lamon Archey (@LamonArchey) February 4, 2019
FAMILY FOREVER!! Not easy to find words but Kristoff was one of the sweetest, kindest, most talented men around. Always there for you. We had some special moments that I'll treasure forever. I know we are all having a tough time. Love to his girls! @kristoffstjohn1 pic.twitter.com/0U4VRB0b4t
— Lauralee Bell (@LauraleeB4real) February 4, 2019
Sitting by myself in my car! It's raining outside, with dark clouds and wind outside... am reading your tweets about my friend KRISTOFF! Thank you all for your kind words! I have none right now! He was a hell of an actor and simply one of the nicest guys ever! Can't believe it!
— Eric Braeden (@EBraeden) February 4, 2019
@kristoffstjohn1 loved life, his family, being an entertainer/filmmaker. One of the most generous people I've ever known. We stayed in touch. #NAACPImageAwards pic.twitter.com/weQzqz9rmK
— Victoria Rowell (@victoriarowell) February 4, 2019
Talk about his talent, share stories and memories if you have them. Lift him up and send him on his way with all the beautiful wonderful parts of him that left an impact on you. He deserves that & so much more. I love you Kristoff. pic.twitter.com/QCbcPR2XzE
— Camryn Grimes (@camryngrimes) February 4, 2019
In my life journey I have come across only a few people that radiate pure love, Kristoff was one of those people. He was so selfless when it came to caring for others. He was smart, so insightful, and supportive of everything positive. 1/2
— Doug Davidson (@DougDavidsonYR) February 4, 2019
2/2 His smile would light up a room and his presence was always welcome. I will miss him. I know in my heart he has found peace and we all have another angel watching over us. God bless his soul. My thoughts and prayers are with him and his family.
— Doug Davidson (@DougDavidsonYR) February 4, 2019
There are no words. Kristoff, I will miss your big hugs, bright smile and contagious laugh... you always made me laugh. It was a true honor to know you. We are heartbroken.
— Melissa Ordway (@MelissaOrdway) February 4, 2019
Goodbye sweet Kristoff. My heart aches at the thought that I will never see you again. The only thing that helps is the knowledge that you are finally out of pain.I know that you are reunited with Julian and I can always think of you with that giant smile on your face. pic.twitter.com/PF7tbVvvKZ
— Jess Walton (@JessWaltonYR) February 4, 2019
The pain of grief and mental health should be addressed in the same realm as "physical" ailments. No real words except....I hope you found peace. God bless those you loved who were left behind. With all my heart and empathy ? https://t.co/UK732Kmlr3
— Viola Davis (@violadavis) February 4, 2019
The first news I heard when I got out of the jungle today was about the passing of a dear friend and colleague, Kristoff.. He was an amazing person and soul. My heart is broken.Sending lots of love and strength to his family and loved ones????#kristoffstjohn #youngandrestless #yr pic.twitter.com/FFq8NKqAI3
— Katherine Kelly Lang (@KatherineKellyL) February 4, 2019
Actress Yvette Nicole Brown, who guest-starred on Y&R in 2016, shared an extra-long tribute on Instagram, writing: "I am still trying to process the news that this dear, dear man is gone. Forgive me if what I say here doesn't come together just right, but I have to say something about @kristoffstjohn. He deserves as loving a tribute as my early morning sadness can muster. #KristoffStJohn was love. Just pure and simple: love. He was the kind of person you meet who you feel like you've known your entire life. He had a gift for making people feel instantly at ease. He could immediately diffuse any nervousness you had. In my case, I was a ball of nerves because I was playing my first role on a soap opera ever...on #YandR which happened to be one of my FAVORITE soap operas...AND I was meeting HIM, who I had been a fan of most of my life. It could have been a scary, heavy moment. Kristoff made it LIGHT."
Wrote Alice Hunter (Kerry Johnson): "My heart is with the family and loved ones of Kristoff St. John. Sending you strength and healing. May he be met with the comforting arms of his beloved son and may their gentle souls rest together for eternity."
My heart is with the family and loved ones of Kristoff St. John. Sending you strength and healing. May he be met with the comforting arms of his beloved son and may their gentle souls rest together for eternity ???? https://t.co/9ZistnNghK
— Alice Hunter (@itsalicehunter) February 4, 2019
Shocking. What a class act @kristoffstjohn1 was. A joy to work with and watch on set - he will be missed tremendously. Sending love to his family during this difficult time. RIP Kristoff #yr #KristoffStJohn #RIPKristoff pic.twitter.com/sL7njJg0lZ
— Abhi Sinha (@AbhiDabi) February 4, 2019
I cant do this justice; I think I'm still in shock. What are we all going to do without him? Without his talent, grace, kindness, wisdom, sincerity, humor, total command of whatever room he stepped into, on screen or off. This one is going to hurt. RIP, Kristoff. I'll miss you. pic.twitter.com/zRjQNE4Hnu
— Scott Clifton (@CliftonsNotes) February 4, 2019
This is such tragic news. Kristoff was a class act, always so kind & a fabulously talented actor. My heart goes out to his family, friends & fans mourning his sudden loss. Rest In Peace #RIPKristoff
— Alison Sweeney (@Ali_Sweeney) February 4, 2019
"There are no words," wrote Winsor Harmon (ex-Thorne Forrester, The Bold and the Beautiful). "I loved ya like a brother man. We had some incredible conversations regarding battles we both have fought and fight. May you finally RIP my dear friend. We will forever miss your love and light. Say hello to Heaven for me brother."
The stories. Thank you #KristoffStJohn for being so incredible. #youngandtherestless
— Tika Sumpter (@iamtikasumpter) February 4, 2019
Woke up to the terrible news of @kristoffstjohn1. Always so kind, and so welcoming, ready with a hug. Sending so much love to everyone feeling his loss and I pray he is at peace with his son. ????
— Chrishell Hartley (@Chrishell7) February 4, 2019
Deeply saddened by the news of Kristoff St.John. I Remember being rocked when I heard about their son a few years ago. My heart goes out to all of you survivors today that have ever felt left in the wake of a loved one's pain. Sending comfort & support
— Kate Mansi (@KateMansi) February 4, 2019
Words cannot convey the sadness over Kristoffstjohn's passing. He will be really missed.
— tristanrogers (@tristanrogers) February 4, 2019
Sending out my deepest condolences to the fans, friends & family of @kristoffstjohn1... #yr #days #gh #bb pic.twitter.com/nGIVdfTlAw
— Ron Carlivati (@carlivatiron) February 4, 2019
What is your all-time favorite memory of Kristoff St. John? Would you like to leave a message of condolence for his loved ones? We want to hear from you -- so drop your comments in the Comments section below, tweet about it on Twitter, share it on Facebook, or chat about it on our Message Boards.