"Step by Step" -- which premiered on ABC in 1991 -- was one of the first shows post-"Brady Bunch" to highlight the complexities of the modern blended family.

The show centers on divorced father-of-three Frank Lambert (Patrick Duffy) and widowed mother-of-three Carol Foster (Suzanne Somers) as they marry and blend their families, despite the kids' initial resentments of each other.

Below, a look back at the stars of the beloved 90s sitcom. Click through the slides to see what they're doing now and then weigh in: Did "Step By Step" change the way you viewed non-traditional families?

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  • Patrick Duffy as Frank Lambert

    Patrick Duffy played Frank Lambert, the divorced father of JT, Al and Brendan.

  • Patrick Duffy today

    Since "Step By Step," Duffy has kept himself busy with a variety of <a href="http://www.imdb.com/name/nm0001155/#Actor">voice actor</a> and <a href="http://www.imdb.com/name/nm0001155/#Actor">guest actor </a>roles in television shows such as "Family Guy," "Justice League" and "Reba." He has also appeared in several <a href="http://www.imdb.com/name/nm0001155/#Actor">Hallmark Channel TV movies</a>. In 2012, he <a href="http://www.huffingtonpost.com/2012/07/18/dallas-larry-hagman-patrick-duffy_n_1683352.html">reprised his role as Bobby Ewing</a> in TNT's reboot of the hit show "Dallas."

  • Suzanne Somers as Carol Foster

    Suzanne Somers played widowed beautician Carol Foster, the mother of Dana, Karen and Mark.

  • Suzanne Somers today

    From 1998 to 2000, Somers <a href="http://www.imdb.com/title/tt0154059/">co-hosted "Candid Camera"</a> along with Peter Funt. In 2000, the actress was <a href="http://www.people.com/people/archive/article/0,,20134247,00.html">diagnosed with breast cancer</a> and chose to <a href="http://www.people.com/people/archive/article/0,,20134247,00.html">forgo traditional chemotherapy treatments</a> in favor a mistletoe extract called Iscador. In 2005, she starred in a one-woman broadway show about her life entitled "The Blonde in the Thunderbird," which was <a href="http://www.broadway.com/buzz/94649/suzanne-somers-the-blonde-in-the-thunderbird-to-close-on-july-23/">cancelled after one week</a>. She is also a best-selling author who has written about hormone therapy and alternative cancer treatments, though she has been <a href="http://www.foxnews.com/story/0,2933,223457,00.html">heavily criticized</a> by the mainstream <a href="http://www.msnbc.msn.com/id/33387002/ns/health-cancer/t/suzanne-somers-questions-chemo-new-book/#.UGnzX_mfGRk">medical community</a>.

  • Stacy Keanan as Dana Foster

    Staci Keenan played Dana Foster, a smart and sarcastic feminist.

  • Stacy Keanan today

    Keanan (who has since changed the spelling of her name from Staci to Stacy) has had several small acting roles since "Step by Step," including a <a href="http://www.imdb.com/title/tt1414382/fullcredits#cast">cameo in the 2010 film "You Again"</a> along with her former co-stars Patrick Duffy and Christine Lakin. She is <a href="http://www.imdb.com/name/nm0443824/bio">married to Guy Birtwhistle</a> and <a href="http://www.imdb.com/name/nm0443824/bio">studied Art History</a> at UCLA.

  • Angela Watson as Karen Foster

    Angela Watson played the vain and ditzy Karen Foster.

  • Angela Watson today

    Watson hasn't done much acting since "Step by Step", but she has kept busy in other ways. She founded <a href="http://www.hugsamerica.com/cast/">Child Actors Supporting Themselves (CAST)</a> -- a foundation that helps young actors manage their finances -- after learning that her own parents <a href="http://www.hugsamerica.com/downloads/cast/CAST_Article.jpg">defrauded her out of millions of dollars</a> she earned as a kid.

  • Sasha Mitchell as Cody Lambert

    Sasha Mitchell played Frank's nephew Cody Lambert -- an oddball who lived in a van in the family's driveway.

  • Sasha Mitchell today

    Mitchell <a href="http://www.imdb.com/name/nm0593711/bio">split with his first wife </a>-- Jeanette Robbins -- in 1997 after being <a href="http://articles.latimes.com/1996-05-03/local/me-65444_1_spouse-abuse">convicted of spousal abuse</a>. The father of four remarried Rachel Mitchell in 2010. He has had <a href="http://www.imdb.com/name/nm0593711/">minor roles in TV shows</a> such as "JAG," "NYPD Blue" and "ER."

  • Christine Lakin as Al Lambert

    Christine Lakin played Alicia "Al" Lambert, a tomboy who later gets in touch with her feminine side.

  • Christine Lakin today

    Lakin has had one of the more successful post-"Step by Step" careers. Besides earning a <a href="http://www.dailybruin.com/article/2012/08/alumna-christina-lakin-depicts-her-return-to-show-business-in-her-web-series-lovin-lakin">Communications degree from UCLA</a>, she landed a number of<a href="http://www.imdb.com/name/nm0003115/"> TV and film roles</a> on shows such as "Family Guy" and "NCIS," movies such as "Valentine's Day" and "You Again," and the Showtime movie "Reefer Madness." In a surprising departure from her tomboyish "Step by Step" character, Lakin was ranked No. 78 in <a href="http://www.imdb.com/name/nm0003115/bio">FHM's Top 100 Sexiest Woman</a> in 2008 (click <a href="http://www.cover-babes.com/2008/02/christine-lakin-bikini-pictures-in-fhm.html">here </a>for photos). She is reportedly dating "You Again" <a href="http://www.imdb.com/name/nm0275698/bio">director Andy Fickman</a>.

  • Brandon Call as J.T. Lambert

    Brandon Call played sports-loving slacker, J.T. Lambert.

  • Brandon Call today

    We haven't heard much about Call (pictured here in 1994) since his "Step By Step" days. <a href="http://www.imdb.com/name/nm0130085/bio">According to IMDb</a>, the former child actor is reportedly divorced with one teenage daughter and, as of several years ago, was said to be <a href="http://thefw.com/brandon-call-step-by-step-where-are-they-now/">working at his parents' gas station. </a>

  • Christopher Castile as Mark

    Christopher Castile played the role of science nerd Mark Foster.

  • Christopher Castile today

    After "Step By Step" and a <a href="http://www.imdb.com/name/nm0144938/">voice role </a>on the Nickelodeon cartoon "Hey Arnold" in the late 90s, Castile (pictured here in 1997) became an <a href="http://thefw.com/christopher-castile-where-are-they-now/">adjunct political science professor</a> at Biola University -- a Christian school in Southern California. He also <a href="http://education.biola.edu/newsletter/">teaches social science</a> at Downey High School.

  • Emily Mae Young

    Emily Mae Young played the role of Lilly Foster-Lambert, Frank and Carol's only biological child and the baby of the family. Not much is known about Young today. Her last IMDb credit is for the 1999 romantic comedy <a href="http://www.imdb.com/title/tt0169347/">"Undercover Angel"</a> starring Yasmine Bleeth.

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