Friends stars Jennifer Aniston and David Schwimmer have followed Matt Le Blanc and Courteney Cox in paying tribute to co-star Matthew Perry, saying he was "such a part of our DNA".
"Oh boy, this one has cut deep," Aniston wrote on Instagram, sharing also a picture of a message Perry had sent her.
"Having to say goodbye to our Matty has been an insane wave of emotions that I've never experienced before. We all experience loss at some point in our lives. Loss of life or loss of love. Being able to really SIT in this grief allows you to feel the moments of joy and attitude for having loved someone that deep. And we loved him deeply.
"He was such a part of our DNA. We were always the 6 of us. This was a chosen family that forever changed the course of who we were and what our path was going to be."
Aniston also spoke of how Perry was driven by his desire to entertain.
"For Matty, he KNEW he loved to make people laugh. As he said himself, if he didn't hear the 'laugh' he thought he was going to die. His life literally depended on it. And boy did he succeed in doing just that. He made all of us laugh. And laugh hard. In the last couple weeks, I've been pouring over our texts to one another. Laughing and crying then laughing again. I'll keep them forever and ever."
She concluded her tribute by saying she loved him so much and that she knew he was "now completely at peace and out of any pain" before stating simply: "Rest little brother."
Schwimmer, who played Ross on the show, also posted a lengthy tribute on Instagram, saying he had "heart".
"Thank you for ten incredible years of laughter and creativity.
"I will never forget your impeccable comic timing and delivery. You could take a straight line of dialogue and bend it to your will, resulting in something so entirely original and unexpectedly funny it still astonishes.
"And you had heart. Which you were generous with, and shared with us, so we could create a family out of six strangers."
He also shared a picture of the pair in suits from a flashback episode of the comedy.
"This photo is from one of my favorite moments with you. Now it makes me smile and grieve at the same time.
"I imagine you up there, somewhere, in the same white suit, hands in your pockets, looking around - 'Could there BE any more clouds?'"
Out of the core group of actors, only Lisa Kudrow is left to speak out about the death.
Perry, who starred as the wise-cracking Chandler Bing on the popular sitcom, died on October 28 (local time) after apparently drowning in a hot tub. He was 54.