出生克莱尔·黛恩斯于1979年4月12日出生于纽约。 由于父母都是艺术家，她从小就对表演发生了兴趣。6岁时她就开始学习现代舞, 9岁时她又参加了著名的“Lee Srrasberg” 戏剧学院举办的周末培训班。聪明美丽的黛恩斯开始受到人们的注意。在11岁时她就得以在影片《爱之梦》（《Dreans of Love》1992）中担任了一个角色。92年她13岁时，又参与了家庭剧《My SoCalled Life》（1993年完成，但直到1994年才播出）的演出。黛恩斯开始为人们所注目，成为一名渐渐升起的少女明星。
成长1994年，黛恩斯在重拍的名片《小妇人》（《Little Women》1994）中出演了一个配角，表现颇为不错
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接下来在《编织恋爱梦》(《How to Make an American Quilt》1995)和《回家过节》（《Home for the Holiday》1995)两部影片中，她也都有出场，虽然并没有能引起人们的太大注意，但她也毕竟从中学到了不少的表演经验。96年时，幸运之星开始降临到黛恩斯身上。在 一部风格现代的影片《罗密欧与朱丽叶》(《ROMEO ANDJULIET》1996)中，黛恩斯获得了演主角朱丽叶的机会。影片引起了轰动的效果，而黛恩斯也因此在美国名声大噪，成为颇受瞩目的少女明星。同年黛恩斯又主演了《I Love You Not》（1996）和《 To Gillian on her 37th Birthday》(1996)两部影片。在后者中，黛恩斯主演了一位帮助母亲与死亡作斗争的女儿。她在片中的表现相当不错。籍着《罗密欧与朱丽叶》一片的影响，黛恩斯成功地为自己开辟了一条明星之路。
作品年表:1.Evening AS …… Young Ann (2007)
2.The Flock AS …… Allison (2006)
3.《斯通家族》The Family Stone AS …… Julie Morton (2005)
4.《杂货店女孩》Shopgirl AS …… Mirabelle Buttersfield (2005)
5.Pushers Needed (2005)
6.A Concert for Hurricane Relief AS …… Herself (2005)
7.The WIN Awards AS …… Shopgirl (2005)
8.Steve Martin: An American Cinematheque Tribute AS …… Herself (2005)
9.The Rage In Placid Lake AS …… Girl at Seminar (2003)
10.《关于爱》It's All About Love AS …… Elena (2003)
11.《终结者3：机器的觉醒》Terminator 3: Rise of the Machines AS …… Kate Brewster (2003)
12.Late Show with David Letterman Episode dated 14 January 2003 AS …… Herself (2003)
13.Inside 'Terminator 3: Rise of the Machines' AS …… Herself (2003)
14.Late Night with Conan O'Brien Episode dated 22 January 2003 AS …… Herself (2003)
15.《伊比的堕落》Igby Goes Down AS …… Sookie Sapperstein (2002)
16.《时时刻刻》The Hours AS …… Julia Vaughan (2002)
17.Brilliant But Cancelled AS …… (archive footage) (2002)
18.《铁狱魔难》Brokedown Palace AS …… Alice Marano (1999)
19.《扫荡三人组》The Mod Squad AS …… Julie Barnes (1999)
20.AFI's 100 Years... 100 Stars AS …… Herself (1999)
21.《偷尝禁果的茱丽叶》Polish Wedding AS …… Hala (1998)
22.《孤星泪》Misérables, Les AS …… Cosette (1998)
23.《幽灵公主》Mononoke-hime AS …… San, The Princess Mononoke (voice: English version) (1997)
24.《U形转弯》U Turn AS …… Jenny (1997)
25.《造雨人》The Rainmaker AS …… Kelly Riker (1997)
26.《彷徨的爱》I Love You, I Love You Not AS …… Daisy/Young Nana (1997)
27.《第69届奥斯卡金像奖颁奖典礼》The 69th Annual Academy Awards AS …… Herself - Presenter: 'That Thing You Do!' Song (1997)
28.1997 VH1 Fashion Awards AS …… Herself (1997)
29.《罗密欧与茱丽叶后现代激情篇》Romeo + Juliet AS …… Juliet (1996)
30.Late Show with David Letterman Episode dated 24 October 1996 AS …… Herself (1996)
31.To Gillian on Her 37th Birthday AS …… Rachel Lewis (1996)
32.《冤家一族》Home for the Holidays AS …… Kitt Larson (1995)
33.《恋爱编织梦》How to Make an American Quilt AS …… Young Glady Jo Cleary (1995)
34.Dead Man's Jack (1995)
35.Late Show with David Letterman Episode dated 18 July 1995 AS …… Herself (1995)
36.The Pesky Suitor AS …… Lisa (1995)
37.《小妇人》Little Women AS …… Beth March (1994)
38."My So-Called Life" AS …… Angela Chase (1994)
39.My So-Called Life My So-Called Life (pilot) AS …… Angela Chase (1994)
40.The Jon Stewart Show Episode dated 27 December 1994 AS …… Herself (1994)
41.Geoffrey Beene 30 AS …… Girl (1993)
42.Dreams of Love (1990)
43.Igby Goes Down: In Search of Igby (2003) AS …… Herself
44.RSC Meets USA: Working Shakespeare (2005) AS …… Herself
45.Terminator 3: Sky Net Database (2003)
46.Terminator 3: Redemption (2004) AS …… Kate Brewster (archive footage)
47.Terminator 3: Rise of the Machines (2003) AS …… Kate Brewster (archive footage)
48.The 62nd Annual Golden Globe Awards AS …… Herself - Co-presenter: Best Actor in a Television Series [Drama] and Best Actress in a Television Series [Drama]
49.VH1/Vogue Fashion Awards AS …… Herself
50.It's All About Love... og Thomas Vinterberg AS …… Herself/Elena (also archive footage)
51.AFI Tribute to Meryl Streep AS …… Herself
