Allison Brooks Janney (born November 19, 1959) is an American actress born in Boston, Massachusetts who studied at Kenyon College where she studied under Paul Newman. Janney pursued acting partially due to Newman's encouragement, going on to study drama at the Neighborhood Playhouse and the Royal Academy of Dramatic Art. Janney rose to prominence for her role as White House Press Secretary (and later Chief of Staff) C.J. Cregg on the television series The West Wing. Janney's portrayal of Cregg earned her multiple awards, including four Primetime Emmy Awards and seven Screen Actors Guild Awards, among many others. Prior to West Wing-fame, Janney performed in numerous American films and soap operas, including American Beauty, As the World Turns, and 10 Things I Hate About You.  Following her considerable television success, Janney has gone on to star in numerous critically acclaimed films and television programs. She remains active in theatre and often works with fellow West Wing alums. Janney currently lends her voice and talent to television and radio through notable guest spots and commercial advertising.

Allison Janney plays as Bonnie Plunkett in Mom.
Allison Janney is the top #1 member of the cast and appears in 158 episodes.

Anna Kay Faris (born November 29, 1976 height 5' 4" (1,63 m)) is an American actress and singer. She is known for her comedic roles in the Scary Movie film series, Lost in Translation, The House Bunny, Brokeback Mountain, My Super Ex-Girlfriend, Cloudy with a Chance of Meatballs, Yogi Bear, What's Your Number?, The Dictator, and I Give It a Year. Early Life: Faris was born in Baltimore, Maryland. Her family moved to Edmonds, Washington when she was six years old Her father, Jack, was a sociologist who worked at the University of Washington as a vice president of internal communicationsand later headed the Washington Biotechnology and Biomedical Association, and her mother, Karen, was a special education teacher at Seaview Elementary School in Edmonds. Faris has an older brother, Robert, who is also a sociologist and a professor at the University of California, Davis. Her parents encouraged her to pursue acting when she was young, and she gave her first professional acting performance at the age of 9 in a three-month run of Arthur Miller's one-act play Danger: Memory! at the Seattle Repertory Theater. She went on to play Scout in a production of To Kill a Mockingbird at the Issaquah, Washington, Village Theatre, and played the title character in Heidi and Rebecca in Our Town. While attending Edmonds-Woodway High School, Faris appeared in a frozen-yogurt TV commercial. After graduating from high school in 1994, Faris attended the University of Washington and earned a degree in English literature.Around this time, "my third or fourth job was a training video for Red Robin, which is a burger chain out West. I play, like, the perfect hostess. And I think they still use it," she said in May 2012. Personal Life: While filming Lovers Lane in London, Faris met her first husband, Ben Indra. They began dating in that year and were married in June 2004, but they divorced in April 2007, citing irreconcilable differences.As part of their divorce agreement, which was finalized in February 2008, Faris agreed to pay Indra $900,000 in addition to other property and acting royalties. Faris met her second husband, actor Chris Pratt, on the set of Take Me Home Tonight. They became engaged in January, and married on July 9, 2009 in a small ceremony in Bali. The couple has a baby boy named Jack.

Anna Faris plays as Christy Plunkett in Mom.
Anna Faris is the top #2 member of the cast and appears in 152 episodes.

Beth Hall is an actress and writer.

Beth Hall plays as Wendy Harris in Mom.
Beth Hall is the top #3 member of the cast and appears in 136 episodes.

Mimi Kennedy plays as Marjorie Armstrong-Perugian in Mom.
Mimi Kennedy is the top #4 member of the cast and appears in 114 episodes.

From Wikipedia, the free encyclopedia. Sadie Calvano (born April 8, 1997, height 5' 2" (1,57 m)) is an American actress. She is known for playing the role of Violet on on the CBS television series Mom and appearing on Melissa and Joey.

Sadie Calvano plays as Violet Plunkett in Mom.
Sadie Calvano is the top #5 member of the cast and appears in 44 episodes.

From Wikipedia, the free encyclopedia. Milton French Stewart (born February 20, 1964, height 5' 10" (1,78 m)) better known by his stage name French Stewart is an American actor, best known for his role as Harry Solomon on the 1990s sitcom 3rd Rock from the Sun.

French Stewart plays as Rudy in Mom.
French Stewart is the top #6 member of the cast and appears in 44 episodes.

Kristen Johnston studied acting at the Atlantic Theater Company Acting School in New York City. She won two Emmys for her role on 3rd Rock from the Sun (1996). She has appeared on many other television shows, including Ugly Betty (2006), ER (1994), Bored to Death (2009) and, perhaps most memorably, as the party girl whose famous final words were "I'm so bored I could die" on Sex and the City (1998). She's currently, on television, on TV Land's hit series, The Exes (2011), which is now in its fourth season. Just a few of Johnston's many stage credits are "So Help Me God!" (Drama desk nomination), "The Women", "Aunt Dan & Lemon", "Love Song" on the West End, as well as starring in three "Shakespeare in Central Park" productions, "Much Ado About Nothing", "12th Night", and "The Skin of our Teeth". She is a long-time member of The Atlantic Theater Company, and her roles over the years have included "The Lights" (Drama Desk Nomination) and "Scarcity". Kristen's film credits include Austin Powers: The Spy Who Shagged Me (1999), the 2nd Austin Powers film (as "Ivana Humpalot"), Finding Bliss (2009), Bad Parents (2012), Bride Wars (2009), L!fe Happens (2011), Vamps (2012), Strangers with Candy (2005), and the upcoming independent film, Lovesick (2014), with Matt LeBlanc. Johnston teaches acting at The Atlantic Theater Company's Acting School at NYU. She founded an organization called SLAM, whose goal is the creation of a desperately needed sober high school in New York City. Johnston's first book was a New York Times Bestselling memoir, entitled "GUTS: the endless follies and tiny triumphs of a giant disaster".

Kristen Johnston plays as Tammy, Tammy Diffendor in Mom.
Kristen Johnston is the top #7 member of the cast and appears in 26 episodes.

Blake Garrett Rosenthal is an actor.

Blake Garrett Rosenthal plays as Roscoe Plunkett in Mom.
Blake Garrett Rosenthal is the top #8 member of the cast and appears in 22 episodes.

​From Wikipedia, the free encyclopedia Nathan "Nate" Corddry (born September 8, 1977) is an American actor best known for his television roles on programs such as Studio 60 on the Sunset Strip, The Daily Show, United States of Tara and Harry's Law. He played Private First Class Loudmouth in the HBO miniseries The Pacific (TV miniseries). He is the younger brother of actor/comedian Rob Corddry. Description above from the Wikipedia article Nate Corddry, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Nate Corddry plays as Gabriel in Mom.
Nate Corddry is the top #9 member of the cast and appears in 22 episodes.

Spencer Daniels plays as Luke in Mom.
Spencer Daniels is the top #10 member of the cast and appears in 22 episodes.