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 CWs 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 Showalters 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 aka The Flash on Smallville 2001 during the 200405 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 NBCs 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 20012006 The CW 20062009 Appeared in two episodes of The WBs 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 Taylors Gary Sinise late wife on CSI NY CBS and Played Jason Embry best friend of Ben Henrickson on the criticallyacclaimed 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 Jennifers 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