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Many This Is Us fans were excited to meet Cousin Debby, played by Camryn Manheim, in season 6 episode 4, “Don’t Let Me Keep You.” The new character brought some joy into a heart-wrenching episode. So who is Debby on This Is Us? Here’s everything you need to know.

[Warning: This article contains spoilers about Debby and Jack in This Is Us Season 6 Episode 4, “Don’t Let Me Keep You.”]

Camryn Manheim plays Cousin Debby on ‘This Is Us’ 

Camryn Manheim as Debby smiling after Marilyn’s funeral in ‘This Is Us’ Season 6 Episode 4
Camryn Manheim as Debby in ‘This Is Us’ | Ron Batzdorff/NBC

Manheim plays Cousin Debby in This Is Us Season 6 Episode 4, but it’s possible you’ve seen the actor before. Prior to joining the cast for “Don’t Let Me Keep You,” Manheim appeared in The Practice and Ghost Whisperer. The Emmy-winner has also appeared in shows like Stumptown, The Magicians, and Living Biblically

Meanwhile, Manheim thanked the This Is Us cast and crew ahead of her cameo. On Instagram, the actor shared a post alongside Jim Cody Williams, Milo Ventimiglia, and Mandy Moore, who play Mike McCreary, Jack, and Rebecca.

“Tonight. This is Us. It was a privilege to go to work with these wonderful actors,” Manheim wrote. “Thank you for the warm welcome and the beautiful words to say. Truly an honor. Special thanks to my 2nd favorite Milo. You’re a gem.”

Who is Cousin Debby to Jack in ‘This Is Us’ Season 6?

In This Is Us Season 6 Episode 4, “Don’t Let Me Keep You,” Jack’s mom, Marilyn (Laura Niemi), dies. So he drives to her home in Ohio, and he meets Debby at the home. Jack calls her “Cousin Debby,” but she quickly corrects him. Debby is Marilyn’s cousin, not his. Nevertheless, the name sticks.

This Is Us fans also learn that Jack’s mom moved in with Debby after leaving Stanley (Peter Onorati). It’s also clear that Debby and Marilyn were very close until the very end. Debby arranged Marilyn’s funeral, and she wrote a poem in her cousin’s honor.

Meanwhile, Debby doesn’t seem to be a big fan of Jack at first. She points out that it took him 13 years to visit, which weighs on Jack throughout the episode. But even so, Debby appears touched by Jack’s eulogy in which the Pearson patriarch thanks Marilyn’s friends for giving her a new home.

Milo Ventimiglia answers whether Camryn Manheim will return to play Cousin Debby by the end of ‘This Is Us’

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‘This Is Us’: Why the Story of Jack’s Mom, Marilyn, Is Hugely Important for Season 6

Although Cousin Debby appeared in This Is Us Season 6 Episode 4, it seems Manheim won’t return before the end of the NBC series. When speaking with People following the Jan. 25 episode, Ventimiglia gushed over Manheim’s cameo. But he noted that the guest actor will only be in one episode.

“I believe it is [a one-time appearance from Debby],” Ventimiglia said. “I believe it is, but we’re happy to have the one.”