Elizabeth Sung dies at 63: Actress appeared on 'The Young and the Restless,' 'The Sopranos,' 'NCIS' and more shows

Actress Elizabeth Sung, who appeared on many of the most popular TV shows in history, passed away Tuesday at 63 years old.

Her cause of death has not been publicly disclosed.

Sung is perhaps best known for her time on "The Young and the Restless" in the 1990s, in which she played restaurant owner Luan, but that was only the beginning of an impressive Hollywood career. Over the past two decades she's had roles on dozens of hit shows, including "Curb Your Enthusiasm," "NCIS: Los Angeles" and "The Sopranos."

In addition to her acting career, Sung was a Juilliard-graduated dancer and won awards for directing 1995 film "Requiem."

See photos of Elizabeth Sung:

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Elizabeth Sung of The Young and the Restless
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Elizabeth Sung of The Young and the Restless
WEST HOLLYWOOD, CA - MAY 03: Elizabeth Sung attends the opening night premiere of 'Searching' at the Los Angeles Asian Pacific Film Festival at Directors Guild Theatre on May 3, 2018 in West Hollywood, California. (Photo by Michael Tullberg/Getty Images)
BEVERLY HILLS, CA - MARCH 08: Actress Elizabeth Sung attends the premiere of 'Fallen Stars' at Laemmle's Music Hall 3 on March 8, 2017 in Beverly Hills, California. (Photo by Tara Ziemba/Getty Images)
HOLLYWOOD, CA - FEBRUARY 12: Elizabeth Sung attends the 'Shanghai Calling' Los Angeles premiere at TCL Chinese Theatre on February 12, 2013 in Hollywood, California. (Photo by Araya Diaz/WireImage)
LOS ANGELES, CA - APRIL 28: Elizabeth Sung arrives at Directors Guild Of America for the 27th Annual Los Angeles Asian Pacific Film Festival - Opening Night on April 28, 2011 in Los Angeles, California. (Photo by Tibrina Hobson/WireImage)
WEST HOLLYWOOD, CA - APRIL 11: Elizabeth Sung attends The ALS Association's 'Partners For Hope' Awards Gala on April 11,2008 at the LA2DAY.com Mansion in West Hollywood, California. (Photo by John M. Heller/Getty Images)
NEW YORK - APRIL 26: Actress Elizabeth Sung attends the premiere of 'East Broadway' during the 5th Annual Tribeca Film Festival on April 26, 2006 in New York City. (Photo by Bryan Bedder/Getty Images for TFF)
BEVERLY HILLS, CA - JUNE 07: (L-R)Alliance board members Vickie Sampson, Elizabeth Sung, Stephanie Young, Judy Chaikin, Jan Reesman, Jennifer Warren and Janet Batchler attend the Alliance of Women Directors' event 'You've Come a Long Way Baby... or Not' at a private residence on June 7, 2006 in Beverly Hills, California. (Photo by David Livingston/Getty Images)
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Sadly, Sung's death isn't the only loss of 2018.

Other stars, many of them quite young, have passed away this year, including Avicii, who died at 28, and "Austin Powers" star Verne Troyer, who died at 49.

All of the celebrity deaths of 2018:

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Celebrities who died in 2018
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Celebrities who died in 2018

Aretha Franklin died at the age of 76 on August 16 following a long battle with cancer. Read more here.

(Photo by Ron Galella, Ltd./WireImage)

Renowned celebrity chef Anthony Bourdain died of an apparent suicide on June 8. Read more here.

(Photo: Reuters)

"Superman" actress Margot Kidder died at the age of 69 in May. Read more here.

(Photo by Gilbert Carrasquillo/FilmMagic)

Nancy Sinatra died at the age of 101 in mid-July. Read more here.

(Photo by: NBC/NBCU Photo Bank via Getty Images)

Designer Kate Spade died on June 5, 2018 by suicide. Read more here.

(Photo: Getty)

DJ Avicii died at 28 on April 20. Read more here.

(Photo by Christopher Polk/Getty Images for MasterCard)

Joe Jackson died at the age of 89 at the end of June. Read more here.

(Photo by Leon Bennett/Getty Images for BET)

"Austin Powers" actor Verne Troyer died at 49 on April 21. Read more here.

(Photo by Barry King/Getty Images)

"Damn Yankees" star and gay icon Tab Hunter died at the age of 86 from cardiac arrest on July 7. Read more here.

(Photo by Silver Screen Collection/Getty Images)

The Cranberries lead singer Dolores O'Riordan died at 46 on January 15. Read more here

(Photo by Frank Hoensch/Redferns)

"The Facts of Life" star Charlotte Rae died at the age of 92 in early August. Read more here.

(Photo by NBC/NBCU Photo Bank via Getty Images)

"Frasier" star John Mahoney died at 77 on February 4. Read more here.

(Photo by Brad Barket/Getty Images)

Former "Glee" actor Mark Salling died at 35 on January 30. Read more here.

(Photo by ANDREAS BRANCH/Patrick McMullan via Getty Images)

Rapper XXXTentacion was shot dead at the age of 20 on June 19. Read more here.

(Photo by Miami Dade County Corrections via Getty Images)

Former child star Jon Paul Steuer (right) died on January 1 at the age of 33. Read more here.

(Photo by Bob D'Amico/ABC via Getty Images)

"Ladies of London" star and model Annabelle Neilson was found dead at the age of 49 in mid-July. Read more here.

(Photo by David M. Benett/Dave Benett/Getty Images for Claridge's)

Comedian Marty Allen died at 95 on February 12. Read more here.

(Photo by Ethan Miller/Getty Images)

Actor Jerry Van Dyke died on January 5 at age 86. Read more here.

(Photo by Mitch Haddad/ABC via Getty Images)

Richard "Old Man" Harrison from "Pawn Stars died on June 25 at the age of 77. Read more here.

(Photo by Denise Truscello/WireImage)

Moody Blues co-founder Ray Thomas died on January 7 at 76. Read more here.

(Photo by Jim Steinfeldt/Michael Ochs Archives/Getty Images)

Motorhead guitarist "Fast" Eddie Clarke died at 67 on January 10. Read more here.

(Photo by Fin Costello/Redferns)

Original Mouseketeer Doreen Tracey died at 74 on January 10. Read more here.

(Photo by Ron Galella/WireImage)

Bobby Zarin (left), husband of former "Real Housewives of New York" star Jill Zarin, died at 71 on January 13. Read more here.

(Photo by Gonzalo Marroquin/Patrick McMullan via Getty Images)

Country singer Lari White died at 52 on January 23. Read more here.

(Photo by Scott Gries/Getty Images)

"Storm Chasers" star Joel Taylor died at the age of 38. Read more here.

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Former NBA star Rasual Butler and former "American Idol" contestant Leah LaBelle died in a car crash on January 30. Read more here.

(Photo by Paul Zimmerman/WireImage)

The Temptations vocalist, Dennis Edwards (center), died at 74 on February 2. Read more here.

(Photo by Paul Redmond/WireImage)

"Home Improvement" actor Mickey Jones died at 76 on February 7. Read more here.

(Photo by ABC Photo Archives/ABC via Getty Images)

Actor Reg E. Cathey died at 59 in February. Read more here.

(Photo by Bruce Glikas/Getty Images)

Former E! reality star Lyric McHenry was found at the age of 26 on August 14. Read more here.

Country singer Daryle Singletary died at 46 in early February. Read more here.

(Photo by Mindy Small/FilmMagic)

TV star Nanette Fabray died at 97 on February 22. Read more here.

(Photo by John Shearer/WireImage)

Bollywood actress Sridevi Kapoor died in late February at 54. Read more here.

(Photo by Amlan Dutta/Hindustan Times via Getty Images)

"MASH" star David Ogden Stiers died on March 3 at 75. Read more here.

(Photo by Tibrina Hobson/FilmMagic)

Rapper Craig Mack died at 46 on March 12. Read more here.

(Photo by Johnny Nunez/WireImage)

Former child star Donna Butterworth died at 62 in March. Read more here.

(Photo by ABC Photo Archives/ABC via Getty Images)

Frank Avruch (aka Bozo The Clown) died at 89 in March. Read more here.

(Photo by John Bohn/The Boston Globe via Getty Images)

"Chicago Fire" actress Dushon Brown died at 49 on March 23. Read more here.

(Photo by Timothy Hiatt/Getty Images)

K-Pop singer Seo Min-woo died on March 25 at 33. Read more here.

Actress Susan Anspach died in April at 75. Read more here.

(Photo by Ron Galella, Ltd./WireImage)

Kids' TV host Chuck McCann died at 83 on April 8. Read more here.

(Photo by gotpap/Bauer-Griffin/GC Images)

"One Flew Over The Kuckoo's Nest" director Milos Forman died at 86 on April 13. Read more here.

(Photo by Ernesto Ruscio/Getty Images)

"Full Metal Jacket" actor R. Lee Ermey died at 74 on April 15. Read more here.

(Photo by Ethan Miller/Getty Images)

"Night Court" actor Harry Anderson died at 65 on April 16. Read more here.

(Photo by Ron Galella, Ltd./WireImage)

Country musician and song-writer Randy Scruggs died at 64 on April 17. Read more here.

(Photo by Ed Rode/FilmMagic)

"Twin Peaks: Fire Walk With Me" actress Pamela Gidley died at 52 in April. Read more here.

(Photo by Ron Galella, Ltd./WireImage)

Dennis Shields, "Real Housewives of New York" star Bethenny Frankel's on-and-off boyfriend, died of an overdose on August 10. Read more here.

(Photo by Alessio Botticelli/GC Images)

"The Goldbergs" actor Jackson Odell died on June 8 at the age of 20. Read more here.

(Photo by Alberto E. Rodriguez/Getty Images)

"Sons of Anarchy" actor Alan O'Neill died at the age of 47 in early June. Read more here.

(Photo by Amy Graves/Wireimage)

Former "America's Got Talent" winner Neal Boyd died at the age of 42 in June. Read more here.

(Photo by Virginia Sherwood/NBC/NBCU Photo Bank via Getty Images)

Jerry Marren, the last living actor who played a munchkin in "The Wizard of Oz," died in June at the age of 98. Read more here.

(Photo by John M. Heller/FilmMagic)

Actor Robert Mandan died at the age of 86 in early June. Read more here.

(Photo by Malcolm Ali/WireImage)

Hugh Dane, who played Hank the security guard on "The Office," died in June at the age of 75. Read more here.

(Photo by Mitch Haddad/NBC/NBCU Photo Bank via Getty Images)

Jerry Maren, the last-living "Wizard of Oz" munchkin, died at the age of 98 in early June. Read more here.

(Photo by John M. Heller/FilmMagic)

Founding member of The Bay City Rollers, Alan Longmuir, died at the age of 70 at the beginning of July after a brief illness. Read more here.

(Photo by Waring Abbott/Getty Images)

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