One Day at a Time Wiki

Philips as her character Julie

Original Cast of One Day at a Time

Laura Mackenzie Phillips is an American actress, singer, and author who portrays Pam in the modern One Day at a Time. In the original One Day at a Time series, she portrayed the character Julie Mora Cooper Horvath.

Early Life

Born in Alexandria, Virginia, Mackenzie Philips is the daughter of John Phillips, singer in The Mamas & the Papas, and his first wife, Susan Stuart Adams (1936–2016). She is the sister of Jeffrey Phillips and a half-sister of Tamerlane Phillips, actress Bijou Phillips, and singer Chynna Phillips.

Phillips attended Highland Hall Waldorf School in Northridge, California. At age 12, Phillips formed a band with three of her classmates and was spotted by a casting agent during one of their performances. She was given an audition for a role in the 1973 film American Graffiti, which she won.


Phillips was twelve years old during the filming of American Graffiti, and thirteen when the movie was released. She was cast as Carol Morrison, a young girl accidentally picked up by hot-rodding teenager John Milner (Paul Le Mat). Because of California state law, producer Gary Kurtz became Phillips' legal guardian for the duration of the filming.

Phillips gained stardom in the 1970s when she played boy-crazy teenager Julie Cooper (when the character got married, her married name was Horvath) on the long-running television show One Day at a Time, for which she earned $50,000 (equal to $237,570 today) a week. 

During the show's third season in 1977, Phillips was arrested for disorderly conduct. Because of her drug and alcohol abuse, Phillips began arriving late and was even incoherent for rehearsals. The producers ordered her to take a six-week break to overcome her addiction but were ultimately forced to fire her in 1980.

After two near-fatal overdoses, Phillips voluntarily entered Fair Oaks Hospital for rehab treatment. After she completed treatment in 1981, the producers of One Day at a Time invited her back to the show.

However, in 1982, Phillips resumed her cocaine use, and the following year, she collapsed on the show's set. When she refused to take a drug test, she was fired again, permanently; her character was written out of the series. In 1992 she entered a long-term drug rehab program and underwent intensive treatment for nine months.

From the mid-1980s to the early 1990s, Phillips performed with a re-formed version of The Mamas & the Papas, known as The New Mamas and The Papas.

In 1999, Phillips co-starred with Cara DeLizia in the Disney Channel series So Weird, playing a fictional rock star named Molly Phillips. She sang original songs written by show producers Jon Cooksey and Ann Marie Montade. In 2002, she appeared in the Disney Channel original movie Double Teamed. Phillips guest-starred on episodes of ERWithout a Trace7th HeavenCold Case, and Beverly Hills, 90210.

Phillips won an Honorary Best Actress award on March 20, 2011, at the closing night awards gala of the Female Eye Film Festival in Toronto, Ontario, Canada, for her performance as Sharon in the 2010 independent film Peach Plum Pear. While in Toronto, she was interviewed on Canada AMET Canada, and The Marilyn Denis Show.

She currently works at the Breathe Life Healing Center in West Hollywood, California, as a drug rehab counselor.

Year Title Role Notes
1973 American Graffiti Carol Morrison
1975 Rafferty and the Gold Dust Twins Rita "Frisbee" Sykes
1979 More American Graffiti Carol "Rainbow" Morrison
1982 Love Child J.J.
1998 True Friends Connie
1999 When Catherine Brown
2005 The Jacket Nurse Harding
2011 Hercules Saves Christmas Helen Dunn Alternate title: Santa's Dog
2011 Peach Plum Pear Sharon
2014 Suburban Gothic Mrs. Richards
2014 Blackout Sarah Short film
2014 North Blvd Linda
2015 Girl on the Edge Deborah Green
2016 Sacred Journeys Tiff Short film
2018 North Blvd Linda
Year Title Role Notes
1973 Go Ask Alice Doris Television Film
1974 Movin' On Chessie Episode: "Roadblock"
1975 Miles to Go Before I Sleep Robin Williams Television film
1975 Baretta Mindy Episode: "On the Road"
1975 The Mary Tyler Moore Show Francie Episode: "Mary's Delinquent"
1975–83 One Day at a Time Julie Mora Cooper Horvath 123 episodes

Main cast (Seasons 1–5) Recurring role (Seasons 7–9)

1976 Eleanor and Franklin Eleanor Roosevelt, age 14 Television film
1978 The Love Boat Allison Scott Episode: "The Big Deal"
1979 Fast Friends Susan Television film
1979 The Incredible Hulk Lisa Swan Episode: "Metamorphosis"
1980 The Silent Lovers Lillian Gish Television film
1982 The Love Boat Rachel Johnson Episode: "Gopher's Roommate"
1985 Murder, She Wrote Carol Needom Episode: "Murder in the Afternoon"
1986 Kate's Secret Deyna Television film
1994 Beverly Hills, 90210 Counselor Ellen Marks Episode: "Intervention"
1995 Melrose Place Maureen Dodd Episode: "Melrose Impossible" & "A Hose by Any Other Name"
1996 Guiding Light Rachel Sullivan 4 episodes
1996 NYPD Blue Mary Donaldson Episode: "Sorry, Wrong Suspect"
1997 Caroline in the City Donna Spadaro Episode: "Caroline and the Singer"
1997 Walker, Texas Ranger Ellen Simms Episodes: "Lucas" (Parts 1 & 2)
1998 Chicago Hope Valerie Boyd Episode: "Risky Business"
1998 Viper Heidi Rosen Episode: "The Full Frankie"
1999–01 So Weird Molly Phillips 63 episodes

Main cast (Seasons 1–3)

2000 The Outer Limits Boo Weston Episode: "Down to Earth"
2001 Kate Brasher Tracy Del Rey Episode: "Tracy"
2001 Crossing Jordan Elaine Stahler Episode "The Dawn of a New Day"
2002 Double Teamed Mary Burge Television film
2002 ER Leslie Miller Episode "Damage Is Done"
2003 The Division Carol Johnson Episode: "Thus with a Kiss I Die"
2004 Without a Trace Theresa Caldwell Episode: "Lost and Found"
2004 NYPD Blue Lorraine Stuval Episode: "Fish Out of Water"
2004 7th Heaven Allison Davies Episode: "Why Not Me?"
2005 One Day at a Time Reunion Herself Television special
2007 Cold Case Sheila Swett Episode: "That Woman"
2009 Radio Needles Tonya Taylor Television film
2012 Interns: The Web Series CEO Episode: "Accepted"
2012 Criminal Minds Ellen Russell Episode: "The Pact"
2012 She Made Them Do It Jamie Long Television film
2014 Phineas and Ferb Female Judge / Jump Instructor (voice) Episode: "Act Your Age"
2014 The Daily Helpline Herself Co-Hostes Episode: "Mackenzie Phillips"
2015 Hot in Cleveland Kaylin Episode: "About a Joy"
2016–18 Milo Murphy's Law Principal Elizabeth Milder (voice) 7 episodes

Recurring role (Seasons 1-2)

2017 Battle of the Network Stars Herself Episode: "TV Moms & Dads vs. TV Kids"
2017–19 One Day at a Time Pam Valentine 7 episodes

Recurring role (Seasons 1–3)

2018 Orange Is The New Black Barbara "Barb" Denning 6 episodes

Recurring role (Season 6)

Year Title Role Notes
1994-98 Greese Betty Rizzo Broadway Touring Revival
1999 The Vagina Monologues Performer Westside Theatre
2001–02 A Delicate Balance Ford Theatre
2002 Same Time, Next Year Shubert Theater
2004–05 How I Learned to Drive Alex Theatre
2005–07 Annie Lily St. Regis Touring revival

Published Works

  • High On Arrival (2009)
  • Hopeful Healing: Essays on Managing Recovery and Surviving Addiction (2017)