See photos of child stars -- where they've been and where they are.
At left, Abigail Breslin arrives at the 16th Annual Gotham Awards on November 29, 2006. At right, she attends the 68th Annual Directors Guild Of America Awards on February 6, 2016.
Jamie Lynn Spears
Jamie Lynn Spears, pictured in left photo with older sister, pop star Britney Spears, at the 2002 Teen Choice Awards, starred in the Nickelodeon series "Zoey 101" from 2005 to 2008. She's since embarked on a country music career.
At left, Miley Cyrus attends a charity event sponsored by Disney in California on June 11, 2006. At right, she attends the New York premiere of "A Very Murray Christmas" on Dec. 2, 2015.
Mary-Kate and Ashley Olsen
The Olsen twins, 12, in their short lived "Full House" follow-up, "Two of a Kind" (left) and, Mary-Kate Olsen and Ashley Olsen pose backstage at the 2014 CFDA Fashion Awards at Alice Tully Hall in New York, on June 2, 2014.
Bug Hall played Alfalfa, center with mouth agape, in the 1994 film, "The Little Rascals." Since then, Hall acted in the movie, "The Stupids," voiced a little boy in Disney's "Hercules" and has had a string of roles on different TV shows, according to IMDb.com.
Dustin Diamond is the actor best known for playing Screech on the '90s NBC sitcom "Saved by the Bell." In May 2015, he went on trial after allegedly stabbing a man in a Wisconsin bar on Christmas Day 2014.
Jennette McCurdy has starred in Nickelodeon's "iCarly," which ran from 2007-2012, and "Sam & Cat," 2013-2014.
Left: Singer Taylor Swift arrives at the Academy of Country Music Awards on May 23, 2006, in Las Vegas. Right: Swift at the Manhattan premiere of "The Giver" at the Ziegfeld Theatre on Aug. 11, 2014.
Cole and Dylan Sprouse
Cole Sprouse, left, with his twin brother Dylan at the world premiere of "Big Daddy," in Los Angeles, on June 17, 1999 (top), and from left, brothers Cole and Dylan Sprouse arrive to teach an acting workshop hosted by Celebrity Talent Academy and Starlight Children's Foundation at the Cochrane Theatre in London, on Jan. 29, 2011.
Actor Kel Mitchell reacts while accepting his award for best actor in a comedy series during the 19th Annual Cable Ace Awards held in Los Angeles, on Nov. 15, 1997 (left), and Kel Mitchell arrives at Centric's 3rd Annual Soul Train Awards at the Fox Theatre in Atlanta, Georgia, on Nov. 17, 2011.
Actor Nick Cannon at the the Kodak Theatre in the Hollywood section of Los Angeles, where nominees for the third annual BET awards were announced, on May 14, 2003 (left), and Nick Cannon at the 5th Annual TeenNick HALO Awards at the Hollywood Palladium in Hollywood, Calif., on Nov. 17, 2013.
Melissa Joan Hart
Actress Melissa Joan Hart poses in New York, on March 25, 1996 (left), and Melissa Joan Hart and son Tucker McFadden Wilkerson at Operation Shower and Birdies for the Brave County Fair at Liberty National Golf Course in Jersey City, NJ., on Aug. 21, 2013.
Katie Holmes arrives for the premiere of "American Pie 2" in Los Angeles, on Aug. 6, 2001 (left), and Katie Holmes at the Michael Kors Spring 2014 collection during New York Fashion Week, on Sept. 11, 2013.
James Van Der Beek
Actor James Van Der Beek hoists his award for breakthrough performance for his role in the film "Varsity Blues" at the 1999 MTV Movie Awards in Santa Monica, Calif. (left), and James Van Der Beek arrives at the premiere of "Labor Day" on the third day of the Toronto International Film Festival at the Ryerson Theatre, on Sept. 7, 2013.
Singer Mandy Moore, 17, smiles while posing for a portrait in Santa Monica, Calif., on Aug. 15, 2001 (left), and Mandy Moore arrives at 'Helmut Newton: White Women - Sleepless Nights - Big Nudes' exhibit opening at the Annenberg Space for Photography in Los Angeles, on June 27, 2013.
"Even Stevens" star, Shia LaBeouf at the premiere of Project Greenlight's "The Battle of Shaker Heights" at the Universal Citywalk in Los Angeles, on Aug. 11, 2003 (left), and Shia LaBeouf after leaving Midtown Community Court following his arrest the previous day for yelling obscenities at the Broadway show "Cabaret," in New York, on June 27, 2014.
Mayim Bialik, 14, stars in her second television series, NBC's "Blossom," in January of 1991 (left), and Mayim Bialik, who plays Amy on CBS' "Big Bang Theory," attends the Academy of Television Arts and Sciences' Performers Peer Group Reception at the Sheraton Universal Hotel in Los Angeles, on Aug. 20, 2012.
Emma Watson, who plays Hermione Granger, arrives for the world film premiere of 'Harry Potter and the Philosophers Stone' screened at the Odeon in London's Leicester Square, Sunday, Nov. 4, 2001 (left), and Emma Watson poses prior to attending the Vogue party, in Paris, Wednesday July 9, 2014.
Dakota Fanning plays Fern in Paramount Pictures' "Charlotte's Web" in 2006 (left), and Dakota Fanning seen at the The Daily Front Row Second Annual Fashion Media Awards at the Park Hyatt New York in New York, on on Sept 5, 2014.
Raven-Symone at the International Emmy Awards in New York, Nov. 25, 1991, left; and attending the after party celebrating her first performance in Broadway's "Sister Act" in New York, March 27, 2012.
Lindsay Lohan played twins Hallie and Annie in the 1998 remake of "The Parent Trap," her breakout role (left), and Lindsay Lohan stars as Elizabeth Taylor in the Lifetime Original Movie, "Liz & Dick," which premiered Nov. 25, 2012.
Scott Baio in "Joanie Loves Chachi," a spinoff of "Happy Days" that lasted for two seasons in the early 1980s (left), and Scott Baio at a Los Angeles press conference to kick off National Newborn Screening Awareness Month in 2008.
Actress Amanda Bynes, 16, on the set of her WB series "What I Like About You," on Oct. 24, 2002 (left), and Amanda Bynes attends the Movie Awards After Party Sponsored By Yoostar at Soho House in West Hollywood, California, on on June 5, 2011. She has since struggled with substance abuse.
Michael J. Fox
Michael J. Fox, in 1983, as conservative teenager Alex P. Keaton on the TV series "Family Ties" (left), and on Oct. 24, 2011. Struggling with Parkinson's for much of his life, Michael J. Fox founded the Michael J. Fox Foundation in pursuit of a cure. He still acts in addition to his activism.
Actor Kirk Cameron, who played Mike Seaver on ABC's "Growing Pains," arrives for the Emmy Awards in Los Angeles, on Sept. 20, 1987 (left), and Kirk Cameron attends the premiere of Samuel Goldwyn Films' "Fireproof" at the Fire Museum in Hollywood., on Sept. 25, 2008.
Fred Savage stars as Kevin Arnold in "The Wonder Years" (1988-1993, left), and Fred Savage arrives at the 64th Annual Directors Guild of America Awards in Los Angeles on Saturday, Jan. 28, 2012. Fred Savage hasn't stopped acting, but his role as a director seems to be a focus as of late. He directed the 2007 film "Daddy Day Camp" starring Cuba Gooding Jr. and several episodes of the CBS sitcom "2 Broke Girls."
Danica McKellar played Winnie Cooper, sometime-girlfriend of Fred Savage's Kevin Arnold, on "The Wonder Years," from 1988 to 1993 (left), and Danica McKellar has written a number of books about girls and math, including 2012's "Girls Get Curves: Geometry Takes Shape."
Ron Howard with Cindy Williams in George Lucas' 1973 film, "American Graffiti" (left), and Ron Howard attends the Tribeca Film Festival Vanity Fair party in New York, on 23, 2014. Ron Howard has evolved into one of the most respected directors in Hollywood.
Rick Schroder in his "Silver Spoon" days (left), and Rick Schroder in 2008's "Journey to the Center of the Earth."
Alyssa Milano, center, on the DVD cover for "Who's The Boss?" (1984-1992, left), and Alyssa Milano attends the Maxim Magazine Super Bowl Party in New York, on Feb. 1, 2014.
Elisabeth Shue in "The Karate Kid" (1984, left), and Elisabeth Shue appeared in several episodes of "CSI" from 2012-2013.
Drew Barrymore in the 1982 classic "E.T.: The Extra-Terrestrial" (left), and Drew Barrymore arrives at the LA Premiere of "Blended" held at the TCL Chinese Theatre in Los Angeles, on May 21, 2014.
Elizabeth Taylor, photographed in the 1940s, launched her long career with the horse-racing film "National Velvet" in her early teens (left). Elizabeth Taylor passed away from congestive heart failure on March 23, 2011, at age 79. Lindsay Lohan played the star in Lifetime's biopic, "Liz & Dick," released the following year.
As a child, pop singer Fergie, or Stacy Ferguson, voiced Charlie Brown's sister Sally in "It's Flashbeagle, Charlie Brown," "Snoopy's Getting Married, Charlie Brown" and the 1985 version of "The Charlie Brown and Snoopy Show" (left). Fergie continues to see success as a member of "The Black Eyed Peas" and as a solo artist.
Hilary Duff of the Disney Channel television show "Lizzie McGuire" (2001-2004, left). Duff guest starred on "Gossip Girl" in 2009 and "Raising Hope" in 2013, but has most recently been more focused on her personal life since marrying Canadian hockey player Mike Comrie in 2010 and giving birth to their son, Luca, in 2012.
Gary Coleman was 10 during the first season of "Diff'rent Strokes" in 1978 (left). Coleman died after suffering a brain hemorrhage that put him in a coma before he was removed from life support on May 28, 2010. He was 42.
Jason Bateman in a special episode of "Little House on the Prairie" (1974-1983, top), and Jason Bateman, right, in a scene from "Arrested Development."
John Cusack in the 1985 cult classic "Better Off Dead..." (left), and John Cusack as Edgar Allen Poe in 2012's "The Raven."
Jerry Mathers as Theodore "Beaver" Cleaver in "Leave it to Beaver" (left). Jerry Mathers still makes memorable guest appearances in television shows and films, including "The War at Home."
Justin Timberlake in his 'N Sync days, circa late '90s (left), and Justin Timberlake performing a single off his 2013 comeback album, "The 20/20 Experience."
Macaulay Culkin in 1990's "Home Alone" (left), and Macaulay Culkin backstage during the 82nd Academy Awards in Los Angeles., on March 7, 2010.
Tiffani Thiessen as Kelly Kapowski in TV series "Saved by the Bell" (1989-1993) (left), and Tiffani Thiessen in USA Network's crime dramedy "White Collar," which first aired in 2009.
Mark-Paul Gosselaar, right, as Zack Morris on "Saved by the Bell" (left) and, Gosselaar and Breckin Meyer recently starred as a pair of lawyer pals in the TNT courtroom comedy, "Franklin & Bash."
Alyson Hannigan in the 1988 film "My Stepmother Is an Alien" (left). Alyson Hannigan has since starred in the CBS comedy series "How I Met Your Mother." She also rejoined "American Pie" costar Jason Biggs and the rest of their high school crew for 2012's "American Reunion."
Most people don't recognize Mischa Barton in her short but memorable role in the 1999 thriller "The Sixth Sense" (top). An grown up Mischa Barton arrives for a recent fashion show for designer Kirrily Johnston at Australian Fashion Week in Austraila. She is best known for her role as Marissa Cooper on "The O.C.," which went off the air in 2007.
Neil Patrick Harris
Neil Patrick Harris as young doctor Doogie Howser on "Doogie Howser, M.D.," which aired from 1989 to 1993 (left). Neil Patrick Harris later starred as himself in 2008's "Harold and Kumar Escape from Guantanamo Bay." He had a lead role on the CBS sitcom "How I Met Your Mother."
Will Smith poses on the set of "The Fresh Prince of Bel-Air" in Los Angeles, Calif., on Oct. 15, 1990 (left). Will Smith arrives at the VIP Pre-Fight Party for Mayhem: Mayweather Vs. Maidana 2 at The MGM Grand Garden Arena in Las Vegas, on Sept. 13, 2014.
"The Fresh Prince of Bel-Air" actor Alfonso Ribeiro had just the right product for the breakdancer in all of us with his 1985 instructional book, "Breakin' and Poppin" (left). Alfonso Ribeiro poses with a Klondike bar on the set of his "Klondike Celebrity Challenge" shoot, on July 15, 2013.
Scarlett Johansson in 2001's "Ghost World" (left). Johansson wrapped her Broadway run as star of "Cat on a Hot Tin Roof" on March 30, 2013 and continues to have a successful film career.
Prince William, center, with mother Princess Diana, and brother Prince Harry in a 1991 photo (top). Prince William wed Kate Middleton, now the Duchess of Cambridge, on April 29, 2011. They are expecting their second child.
Christina Ricci as Wednesday Addams in a promotional photo for the 1993 movie "Addams Family Values" (left), and Ricci at a Berlin screening of her 2012 film, "Bel Ami."
Christina Aguilera in 1999, circa her "Genie in a Bottle' days (left). Christina Aguilera most recently appeared as a judge on "The Voice" for the three seasons before exiting in 2012. She released her latest album, "Lotus," on Nov. 9, 2012.
Seth Green in the 1988 film "My Stepmother Is an Alien" (left). Now Seth Green might be best known for his role as Dr. Evil's estranged son in the Austin Powers films, but he has recently enjoyed success in several animated series including Family Guy, American Dad and action-figure based show he co-created, "Robot Chicken."
Courteney Cox in the 1987 live action He-Man film, "Masters of the Universe" (left). Best known as Monica Geller on "Friends," Cox also stars in the sitcom "Cougar Town," which moved from ABC to TBS for its fourth season, which premiered in January 2013.
Claire Danes in the short-lived mid-'90s teen drama "My So-Called Life" (left). Claire Danes has seen huge success with her hit Showtime drama, "Homeland," in which she stars as a CIA officer.
Britney Spears, at age 11, as a member of the "Mickey Mouse Club" (left). Britney Spears arrives at 2014 Elton John Oscar Viewing and After Party in West Hollywood, Calif., on Mar. 2, 2014.
Leonardo DiCaprio on "Growing Pains" in the early 1990s. Leonardo DiCaprio stars as Jay Gatsby, here with Carey Mulligan as Daisy Buchanan, in Baz Luhrmann's "The Great Gatsby," released on May 10, 2013.
Jessica Biel, left, with the rest of the "7th Heaven" cast in 1996 (left). Jessica Biel in 2007's "I Now Pronounce You Chuck & Larry." She married Justin Timberlake on Oct. 19, 2012.
Jodie Foster played a young prostitute in the 1976 film "Taxi Driver" (left). As she accepted a lifetime achievement award during the 70th Golden Globe Awards on Jan. 13, 2013, Foster publicly admitted she was gay for the first time.