Katherine Waterston Has No Husband but Had a Six-Year-Long Relationship

Katherine Waterston has enamored audiences with her performance onstage and on screen. Though she draws in a large fanbase full of people curious about her personal life, the actress guards her privacy.

Hollywood starlet Katherine Waterston has made a name for herself in the world of film and theatre. She is the third child and second daughter of beloved American actor Sam Waterston, who starred in "Law and Order."

After watching how her father succeeded as an actor, Katherine dedicated herself to truly learning and mastering the craft. It was in her pursuit that she met her longtime partner, another film and theater heavyweight, who wrote and reportedly dedicated an entire trilogy of plays to her.

Katherine Waterston Dated Adam Rapp for 6 Years

Waterston drew her first breath in the Weinmaster, London, but she grew up in Connecticut. She attended the New York University: Tisch School of The Arts and debuted her acting career in 2007.

Waterston appeared in several films and Broadway productions before landing her breakout role in 2014's "Inherent Vice." She appeared alongside several Hollywood stars, including Reese Witherspoon, Joaquin Phoenix, and Owen Wilson.

She's also renowned for her role as Porpentina "Tina" Goldstein in the "Fantastic Beasts" film franchise alongside Eddie Redmayne. In all those years, Waterston mostly kept her love life to herself.

It's unclear when her romance with Rapp began or ended, but the only known detail is that it lasted six years. The former lovers collaborated on many productions, including "The Hallway Trilogy" plays, which debuted in February 2011.

Although Waterston only led the first of the three, where she played the title character Rose, Rapp reportedly dedicated the entire production to the actress. Like Waterston, however, Rapp is a private man. There's little, if any, information available about his personal life.

The writer and director, who signed with the CAA last May, is known for authoring numerous plays, including "The Metal Children," "The Edge of Our Bodies," and "Bingo with the Indians." In addition, he has also written novels and TV shows, including "The L Word" and "American Rust."

Following his separation from Waterston, it's unknown if Rapp moved on to another partner. The pair never made any public statements about their relationship, but a rather surprising development occurred for Waterston in that regard: she had a baby.

Katherine Waterston Is Super Private about Her Child and Private Life

In November 2018, Waterston attended the U.K. premiere of "Fantastic Beasts: The Crimes of Grindelwald" in a stunning yellow gown that hugged her waist, revealing her baby bump. She took the media by storm, subtly announcing her pregnancy on the red carpet.

Waterston gave no information about the father of her child, but the public continued to speculate. She reportedly gave birth to a baby boy in 2019; however, she has yet to confirm the gender and birthdate of her child.

Katherine Waterston Starred in a Period Drama about Lesbians: "The World to Come"

The film, set in the 19th century, stars Waterston and Vanessa Kirby as the wives of farmers whose passionate love affair began from the moment they laid eyes on each other. It debuted at the 77th Venice Film Festival in September 2020.

A few months before, Waterston had shared a photo of herself and Kirby social distancing and wearing face masks while volunteering at the charity organization SpareHand. Waterston donned blue flare-leg jeans with a white loose-fitting tucked-in t-shirt.

Her partner, sporting black three-quarter jeans and a tucked black top, stood to her her side. Alongside the photo, Waterston wrote that one could never "mask true love," perhaps alluding to their onscreen romance. She concluded her caption by saying nothing was more fun than volunteering with Kirby.