Kari Michaelsen Biography: Net Worth, Age, Height, TV Shows, Ex-Husband, Parents, Movies, Awards
Kari Michaelsen, professionally known by her married surname, is an American former actress, television personality, motivational speaker, host and communications professional.
Born Kari Markussen, she began performing as a child and became widely recognized for playing Kathleen “Katie” Kanisky on the NBC sitcom Gimme a Break! from 1981 to 1987.
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After stepping away from regular television acting, she developed a career in motivational speaking, hosting, seminars and professional development.
| Kari Michaelsen | |
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| Wiki Facts & About Data | |
| Real Name: | Kari Markussen |
| Stage Name: | Kari Michaelsen |
| Born: | November 3, 1961 (age 64 years old) |
| Place of Birth: | Manhattan, New York City, United States |
| Nationality: | American |
| Ethnicity: | White |
| Height: | 161 cm |
| Religion: | Christianity |
| Parents: | Arne Markussen and Roberta Stevenson |
| Children: | Nickolas Waldock |
| Occupation: | Actress, Television Personality, Motivational Speaker, Host |
| Net Worth: | $2 million |
Early Life and Education
Kari Michaelsen was born Kari Markussen on November 3, 1961, in Manhattan, New York City. She was born into a family already connected to the entertainment industry.
She was brought up by her parents. Her father, Arne Markussen, was a singer, while her mother, Roberta Stevenson, was a dancer. Her father also had Norwegian heritage. She is an only child.
Michaelsen‘s exposure to entertainment began extremely early. She sang on the Sesame Street soundtrack as a child and appeared in Off-Broadway productions by the age of 11.
Her childhood experience performing on stage gave her an unusually early introduction to professional entertainment.
In 1975, when Michaelsen was 13, her family moved from New York to Beverly Hills, California. The move placed her closer to the center of the American television and film industry.
She subsequently began obtaining television opportunities, including appearances on Diff’rent Strokes and Eight Is Enough.
She attended Beverly Hills High School and graduated in 1979. She later studied at the University of California, Los Angeles.
Some biographical sources state that her university studies included psychology, while other sources simply identify UCLA as her university.
Michaelsen also pursued singing and stage performance during her formative years.
Her early professional experience helped her transition naturally from children’s entertainment and theatre into television acting. Her religion is listed as Christianity.
Career
Michaelsen began appearing professionally on television while still a teenager. One of her early credits was the 1980 television film Scared Straight! Another Story.
She subsequently appeared in Diff’rent Strokes, playing Ellen Marshall, and Eight Is Enough, playing Lisa.
In 1981, she appeared in several television productions, including The Choice, CHiPs and The Incredible Hulk.
She also appeared as Kelly Larson in the television series Rosie, accumulating 25 episodes between 1981 and 1983.
Her biggest acting opportunity arrived in 1981 when she was cast as Kathleen “Katie” Kanisky on NBC’s Gimme a Break!. The sitcom starred Nell Carter as Nell Harper, a housekeeper who helps care for the children of a widowed police chief.
Michaelsen played the eldest Kanisky daughter and became one of the show’s principal young performers.
She gradually moved away from regular acting and eventually retired from television acting around 2001.
Rather than ending her professional career altogether, she redirected her experience in communication and entertainment into public speaking and professional development.
Michaelsen began motivational speaking and educational seminars during the 1990s.
Her post-acting career has included hosting, public speaking, coaching, communications work, media and marketing mentoring and entrepreneurship.
She has also participated in speaking events and professional-development programs, using her experience of growing up in the entertainment business as part of her message about confidence, authenticity, career development and personal success.
Her transition from child performer to motivational speaker has become an important part of her later professional identity.
In a 2026 interview discussing her career, Michaelsen reflected on experiencing fame at a young age and developing a sense of purpose beyond celebrity.
The discussion emphasized authenticity, personal growth and making a positive contribution rather than relying solely on public recognition.
Michaelsen has also maintained connections to the entertainment and lifestyle industries as a host and brand representative.
Her professional activities have included work related to communications, marketing and business development, allowing her to remain active in public-facing roles after leaving scripted television.
Awards and Nominations
- 1983 — Young Artist Award nomination, Best Young Actress in a Comedy Series, Gimme a Break!
- 1984 — Young Artist Award nomination, Best Young Actress in a Movie Made for Television, The Kid with the 200 I.Q.
Social Media
- Instagram: @karimichaelsen
- X/Twitter: @KariMichaelsen
Personal Life
Kari Michaelsen, 64 years old, is currently divorced and is not married. She was previously married to David Waldock, a Mercedes-Benz executive, in July 2002. Their marriage ended in divorce in 2009.
Michaelsen and Waldock have one son, Nickolas Waldock. He is named Nickolas; he is their only child.
Before her marriage, Michaelsen had several publicly reported relationships. She dated singer Andy Gibb during the 1980s, and biographies also report a relationship with actor Michael J. Fox during the same decade.
Because these relationships occurred many years ago, they form part of her historical biography rather than her current relationship status.
Michaelsen has maintained a longstanding friendship with actress Kristy McNichol. Their friendship dates back to their years in the entertainment industry and has continued beyond their respective acting careers.
Her interests have increasingly centered on communication, personal development, public speaking and helping people build confidence.
Her transition away from scripted television allowed her to concentrate on speaking engagements, seminars and professional-development work.
Michaelsen‘s career also reflects an interest in entrepreneurship and marketing. Her later work has included business-oriented roles, hosting and consulting, giving her a professional identity that extends well beyond her earlier status as a television actress.
She has spoken publicly about the pressures of growing up in the entertainment business and the importance of developing a sense of identity beyond fame.
Her recent professional conversations emphasize authenticity, resilience, contribution and personal fulfillment.
Michaelsen also remains associated with her most recognizable acting role, Katie Kanisky on Gimme a Break!, and continues to participate in discussions and interviews about her television career and life after Hollywood. Her height is 161 cm.
Net Worth
Kari Michaelsen‘s net worth is $2 million. Her income has come from her television and film acting career, motivational speaking, hosting, seminars, communications and marketing work, consulting and entrepreneurial activities.
Filmography
- Joy Ride: An Auto Theft (1976) — Kari
- Scared Straight! Another Story (1980) — Television film
- Diff’rent Strokes (1980) — Ellen Marshall
- The Choice (1981) — Teenager
- Saturday the 14th (1981) — Debbie Hyatt
- Gimme a Break! (1981–1987) — Kathleen “Katie” Kanisky
- The Incredible Hulk (1981) — Linda
- The Kid with the 200 I.Q. (1983) — Julie Gordon
- Terror in the Aisles (1984) — Herself
- Full House (1989) — Stacey Fleetwood
What People Ask
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