Kyle Gallner was born in West Chester, Pennsylvania. He started his career by following his sister along to one of her auditions.

Perhaps best know for his role as Cassidy "Beaver" Casablancas on the CW's lone hit series, Veronica Mars (2004), actor Kyle Gallner had been appearing in films and on television since his early adolescence. Born on Oct. 22, 1986 and originally from Philadelphia, PA, Gallner made his first screen appearance on an episode of Third Watch (1999). After making his feature debut with a small role in Michael Showalter's bizarre comedy Wet Hot American Summer (2001) (2001), he returned to television with episodes of Law & Order: Special Victims Unit (1999) and Touched by an Angel (1994). He next appeared in the series finale of The District (2000) before playing his first recognizable role - that of Bart Allen (a.k.a. "The Flash") on Smallville (2001) during the 2004-05 season.

In 2005, Gallner joined the cast of Veronica Mars (2004) for the last three episodes of the first season, giving him the opportunity to carry over his role of Beaver into the next season. During his run on "Veronica Mars," Gallner continued making guest spots, appearing in episodes of Jack & Bobby (2004), Cold Case (2003), CSI: NY (2004) and Bones (2005). Gallner began a recurring role as a devout Mormon in the controversial HBO series Big Love (2006). Meanwhile, Gallner revived his "Smallville" role in early 2007, returning as Impulse rather than The Flash - due to a feature film with the same character being developed by Warner Bros. He Made his acting debut in an episode of NBC's Third Watch (1999). Made his film debut in the comedy cult film Wet Hot American Summer (2001). Had a recurring role as superhero Bart Allen in Smallville (2001) (The WB, 2001-2006; The CW, 2006-2009). Appeared in two episodes of The WB's Jack & Bobby (2004). Joined the cast of UPN s Veronica Mars as Cassidy Casablancas; became a regular during the show s second season. Had a recurring role as Reed Garrett, the son of Detective Taylor's (Gary Sinise) late wife on CSI: NY (CBS) and Played Jason Embry, best friend of Ben Henrickson, on the critically-acclaimed HBO drama Big Love.

Featured in the independent film Sublime. Appeared in three episodes of The Shield (FX). Had a supporting role in the Diablo Cody penned dark comedy Jennifer's Body. Played the lead role in the horror film The Haunting in Connecticut. Cast as the lead male, Quentin, in the remake of A Nightmare on Elm Street. Gallner has in his filmography acclaimed Independents films as Gardens of the Night (2008), Beautiful Boy (2010), Red State (2011), Little Birds (2011), Magic Valley (2011) and Smashed (2011). In 2013, Gallner appeared in the film Beautiful Creatures (2013)_, directed by Richard LaGravenese.

凯尔·盖尔纳（Kyle Gallner）出生于宾夕法尼亚州的西切斯特。他的职业生涯始于跟随姐姐参加她的一次试镜。

演员凯尔·盖尔纳 （Kyle Gallner） 最出名的可能是他在 CW 唯一的热门剧集《维罗妮卡·马尔斯》（2004 年）中饰演卡西迪“海狸”卡萨布兰卡斯，他从青春期开始就出现在电影和电视中。Gallner 出生于 1986 年 10 月 22 日，最初来自宾夕法尼亚州费城，在《第三更》（1999 年）的一集中首次出现在银幕上。在迈克尔·肖沃尔特（Michael Showalter）的奇异喜剧《湿热的美国夏天》（2001）（2001）中以一个小角色首次亮相后，他凭借《法律与秩序：特殊受害者小组》（1999）和《被天使感动》（1994）的剧集重返电视。接下来，他出现在《The District》（2000 年）的系列结局中，然后在 2004-05 赛季的 Smallville （2001） 中扮演了他的第一个可识别角色——巴特·艾伦（又名“闪电侠”）。

2005 年，盖尔纳加入了维罗妮卡·马尔斯 （2004） 的演员阵容，参加了第一季的最后三集，让他有机会将海狸的角色延续到下一季。在《维罗妮卡·火星》（Veronica Mars）的演出中，盖尔纳继续客串，出现在《杰克和鲍比》（2004年）、《冷案》（2003年）、《犯罪现场调查：纽约》（2004年）和《骨头》（2005年）的剧集中。盖尔纳在备受争议的 HBO 连续剧《大爱》（2006 年）中开始反复扮演虔诚的摩门教徒角色。与此同时，盖尔纳在 2007 年初恢复了他的“超人”角色，以冲动而不是闪电侠的身份回归——因为华纳兄弟正在开发一部具有相同角色的故事片。他在 NBC 的《第三更》（1999 年）的一集中首次亮相。在喜剧邪典电影《湿热的美国夏天》（2001 年）中首次亮相。在《超人传》（2001）中反复扮演超级英雄巴特·艾伦（WB，2001-2006;CW，2006-2009年）。出现在WB的Jack & Bobby（2004）的两集中。加入UPN的维罗妮卡·马尔斯（Veronica Mars）的演员阵容，饰演卡西迪·卡萨布兰卡斯（Cassidy Casablancas）;成为该剧第二季的常客。在《犯罪现场调查：纽约》（CBS）中饰演侦探泰勒（加里·辛尼斯饰）已故妻子的儿子里德·加勒特（Reed Garrett），并在广受好评的HBO电视剧《大爱》中扮演本·亨里克森（Ben Henrickson）最好的朋友杰森·安布里（Jason Embry）。

在独立电影《崇高》中出现。出现在《盾牌》（FX）的三集中。在暗黑破坏神科迪执笔的黑色喜剧《詹妮弗的身体》中担任配角。在康涅狄格州的恐怖电影《闹鬼》中担任主角。在翻拍的《榆树街的噩梦》中饰演男主角昆汀。盖尔纳在他的电影作品中广受赞誉的独立电影包括《夜之花园》（2008 年）、《美少年》（2010 年）、《红州》（2011 年）、《小鸟》（2011 年）、《魔谷》（2011 年）和《粉碎》（2011 年）。2013年，盖尔纳出演了由理查德·拉格拉文斯执导的电影《美丽的生物》（2013）_。