He was cast in the family film Because of Winn-Dixie at age 8 after choosing to audition with a toothpick in his mouth, The choice set him apart from the hundreds of boys vying for the role of Stevie Dewberry, one of the two brothers tormenting Annasophia Robb's character. Director Wayne Wang loved the idea and used it in the film. Robb's mother later urged the casting director of How to Eat Fried Worms to audition Benward for the lead role of Billy. Luke also appeared as 'Owen' in Dog Gone. He also starred in the 2008 Disney Channel's movie Minutemen along with Jason Dolley. and the direct to video Mostly Ghostly where he plays 'Nicky'. He also played 'Alan at 14' in the film Dear John (2010). Watch for Luke also in the 2012 TV movie Madison High.

Benward stars as Angel/Michael in Martina McBrides award-winning music video for Concrete Angel. The clip was nominated for a Grammy, among other awards, and McBride took home the prize for female Video of the year at the 2003 CMT Flameworth Awards. His commercial credits include campaigns for McDonalds, Nintendo, American Express, and Hamburger Helper.

Part of and entertainment family, Benward also loves to sing and dance and got his acting star tagging along to auditions with his mother - actress, acting coach and former CMT veejay Kenda Benward. His father, Aaron Benward, is half of the country music duo Blue Country. He has two younger sisters, Ella and Gracie. Born and raised in Tennessee, he enjoys riding his bike and playing football and video games.