Acting

In 1997, Sigler was cast as Meadow Soprano, daughter of New Jersey mob boss Tony Soprano on the HBO series The Sopranos.^[5] When her manager first told her about auditioning for The Sopranos, Sigler thought she would have to sing soprano.^[6] She continued to play the role through the series finale in 2007.^[7][8]

Sigler played the title role in Cinderella on tour and at The Theatre at Madison Square Garden in 2001.^[9][10] She then spent five months on Broadway from October 2002 through February 2003 playing Belle in Beauty and the Beast.^[11]

In 2004, Sigler starred as "Hollywood Madam" Heidi Fleiss in the USA television movie Call Me: The Rise and Fall of Heidi Fleiss. In that same year, she had her first starring feature film role, Extreme Dating, an independent film. In 2005, Sigler starred in Love Wrecked and the following year in Homie Spumoni, when she played the role of Alli, the girlfriend of Renato/Leroy (Donald Faison) directed by Mike Cerron.^[12]

In 2008, Sigler appeared as herself in 13 episodes of the fifth and sixth season of the HBO series Entourage. In the fifth season, she appeared as the love interest of the character Sal 'Turtle' Assante, portrayed by Jerry Ferrara. She returned as a recurring guest star for season six of the series, after becoming Ferrara's real-life girlfriend.^[13] On November 17, 2008, Sigler guest-starred as Jillian on the TV series How I Met Your Mother in the episode "Woooo!".^[14] On the December 6, 2008, airing of Saturday Night Live, she appeared as the checkout girl for the Digital Short music video "Jizz in My Pants" by The Lonely Island.^[15]

In 2009, Sigler starred in the psychological thriller film Beneath the Dark, which originally had a working title of Wake.^[16] The same year, she appeared on ABC's Ugly Betty in a five-episode arc.^[17] From 2012 to 2013, she appeared as a main character in the short-lived series Guys with Kids.

In 2019, Sigler appeared on the game show Pyramid alongside Steve Schirripa.^[18]

In 2020, Sigler starred as a featured player in the Adult Swim sitcom Beef House.^[19]

Other endeavors

In 2001, Sigler released a pop album called Here to Heaven, which featured the single "Cry Baby." The album was a commercial failure. In 2012, she collaborated with Romeo Santos on the single "You" and appeared in its music video.^[20]

In 2002, Sigler co-authored her autobiography, Wise Girl: What I've Learned About Life, Love, and Loss.^[21]

In 2024, Sigler began a podcast with fellow actress with multiple sclerosis Christina Applegate called MeSsy about their friendship based on the condition.^[22]

Film

Television

Music videos