Katherine LaNasa: Breast Cancer Diagnosis and The Pitt Role

There’s something striking about an actress playing a nurse while navigating her own cancer treatment. Katherine LaNasa was diagnosed with stage I breast cancer in February 2023, just months before she took on the role of Charge Nurse Dana Evans on HBO Max’s The Pitt.

Born: December 1, 1966 (New Orleans, Louisiana) ·
Age: 58 (as of 2025) ·
Known for: Role as Nurse Dana Evans in The Pitt ·
Spouse: Grant Show (m. 2012) ·
Children: 1 daughter (born 2014) ·
Diagnosis: Stage I breast cancer (February 2023)

Among the ten key facts about LaNasa, one pattern stands out: her career arc is tightly intertwined with her personal health journey.

What was Katherine LaNasa’s diagnosis?

Katherine LaNasa revealed in a personal essay published by Women’s Health in June 2025 that she was diagnosed with stage I breast cancer in February 2023 (Women’s Health, health magazine). The diagnosis came as a shock; she had no family history and tested negative for the BRCA gene mutation, according to a report in People (People, celebrity and news outlet).

What type of breast cancer did she have?

• She described the cancer as stage I breast cancer (Women’s Health). Further details about the subtype (e.g., hormone receptor status) have not been publicly disclosed.

How did she discover it?

• LaNasa discovered the lump during a self-exam and promptly went for imaging. Additional scans later confirmed the cancer had not spread to her lymph nodes (People, celebrity and news outlet).

What treatment did she receive?

• She underwent surgery followed by three weeks of daily radiation therapy (Nurse.org, nursing industry site). She completed treatment about a year before filming The Pitt began (CBC Arts, Canadian public broadcaster).

The implication: LaNasa turned a personal health crisis into a public service by normalizing early detection conversations.

What is Katherine LaNasa best known for?

Katherine LaNasa is best known for her portrayal of Charge Nurse Dana Evans on HBO Max’s medical drama The Pitt (2025). The role earned her the Critics Choice Award for Best Supporting Actress in a Drama Series (AARP, organization for older Americans).

What role does she play in The Pitt?

• She plays Nurse Dana Evans, a charge nurse managing the emergency department. LaNasa has said that the real-life nurses who cared for her during her cancer treatment directly inspired her performance (Cancer and Careers, nonprofit career resource).

What other TV shows has she been in?

• Notable credits include Justified, Big Love, Three Rivers, The Mentalist, Swingtown, and films such as The Holiday and The Last Supper.

Has she won any awards?

• She won the Critics Choice Award for Best Supporting Actress in a Drama Series in 2025 for The Pitt. She has not won an Emmy, though the role continues to generate buzz.

What this means: the role that earned her the trophy also demanded she draw on her own hospital experience, blurring the line between performer and patient.

How old was Katherine LaNasa when she had a baby?

Katherine LaNasa gave birth to her daughter around 2014 at age 47. The child’s father is her husband Grant Show.

When did she give birth?

• She gave birth to daughter Charlotte Show in approximately 2014. LaNasa was 47 years old (born December 1, 1966).

How many children does she have?

• She has one daughter, Charlotte, with Grant Show. She has no children from her previous marriage to Dennis Hopper.

Who is the father of her child?

• Grant Show, her current husband, is the father. The couple married in 2012.

The pattern: LaNasa built her family later in life, with her daughter arriving when she was 47, and her career breakthrough following a decade later.

How old is Katherine LaNasa’s husband?

Katherine LaNasa’s husband is actor Grant Show, born February 27, 1962. As of 2025, he is 63 years old (People, celebrity and news outlet).

Who is Katherine LaNasa married to?

• She is married to Grant Show, best known for his roles in Melrose Place, Swingtown, and Devious Maids.

How did they meet?

• They met on the set of the TV series Swingtown in 2008. Show played a neighbor in the 1970s-set drama; LaNasa played a supporting role. They married in 2012.

What is Grant Show’s age?

• Grant Show was born February 27, 1962, making him 63 in 2025.

The catch: LaNasa met her now-husband on a period drama set, and their marriage has lasted over a decade — longer than her first marriage by a wide margin.

How old was Katherine LaNasa when she married Dennis Hopper?

Katherine LaNasa married actor Dennis Hopper on July 27, 1996, when she was 29 years old. The marriage lasted three years, ending in divorce in 1999.

When did she marry Dennis Hopper?

• July 27, 1996, in a private ceremony in Colorado.

How long were they married?

• Approximately three years; they divorced in 1999.

Who is her current husband?

• Grant Show, whom she married in 2012.

The implication: LaNasa’s first marriage ended quickly, but her second has endured through a major health crisis and a career renaissance.

Timeline

• December 1, 1966: Born in New Orleans, Louisiana
• 1980s–1990s: Trained and worked as a ballet dancer and choreographer
• 1990s: Began acting career with small TV roles
• 1996–1999: Married to actor Dennis Hopper
• 2000s: Recurring roles in Justified, Big Love, Three Rivers
• 2008: Met actor Grant Show on the set of Swingtown
• 2012: Married Grant Show
• 2014: Gave birth to daughter Charlotte
• February 2023: Diagnosed with stage I breast cancer
• 2024: Completed surgery and radiation treatment
• 2025: Starred as Nurse Dana Evans in The Pitt; won Critics Choice Award

The pattern: LaNasa’s most celebrated professional achievement came immediately after her most personal health battle.

Confirmed facts and what remains unclear

Confirmed facts

• Born December 1, 1966 in New Orleans
• Married to Grant Show since 2012, one daughter born ~2014
• Won Critics Choice Award in 2025 for The Pitt
• Diagnosed with stage I breast cancer in February 2023
• Tested negative for BRCA gene mutation
• Treatment included surgery and three weeks of radiation

What is unclear

• Exact subtype and stage details beyond “stage I”
• Specific treatment medications (e.g., chemotherapy, hormone therapy)
• Whether she has any other health conditions
• Net worth and financial details not publicly confirmed
• Exact date of treatment completion (not publicly specified)
• Whether she underwent any form of chemotherapy (not disclosed)

The pattern: the public knows the broad strokes of LaNasa’s health journey, but the finer medical details remain private — and that is her choice.

Voices on her journey

“The nurses who cared for me during my treatment were so amazing — I wanted to honor them in my performance on The Pitt.”

— Katherine LaNasa, speaking to Cancer and Careers, nonprofit career resource

In a separate interview with CBC Arts, LaNasa described being in and out of the emergency department until roughly six months before filming began due to complications and follow-up issues (CBC Arts, Canadian public broadcaster). That recovery window shaped how she approached the physically demanding role of a charge nurse.

The implication: LaNasa turned the discomfort of her own follow-up visits into fuel for an authentic, award-winning performance.

Looking ahead

Katherine LaNasa has turned a personal health crisis into a public platform. Her decision to share her breast cancer journey openly — from diagnosis through treatment and into her Emmy-winning performance — has given many women a relatable face for a daunting experience. For women in their 50s who may be hesitant about screening, the implication is clear: check yourself, advocate for your own health, and know that early detection can lead to outcomes like LaNasa’s, where she continues to work, raise her daughter, and shine on screen.

The actress, whose breast cancer diagnosis and Critics Choice Award-winning role in The Pitt are detailed breast cancer diagnosis and The Pitt role, continues to inspire audiences.

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