Denny Miller is a fictional character from the Australian soap opera Home and Away, played by Jessica Grace Smith. The actress was a fan of the show prior to being cast. She originally auditioned for the role of Phoebe Nicholson, before she was offered the part of Denny in 2013, a week before she left for Los Angeles. She made her first screen appearance during the episode broadcast on 12 February 2014. Denny was introduced as the long-lost daughter of Ethan MacGuire (Matt Minto). She was portrayed as a tough, honest, self-sufficient tomboy. Shortly after her arrival, Denny was at the centre of a love triangle involving Chris Harrington (Johnny Ruffo) and Casey Braxton (Lincoln Younes). Denny and Casey then embarked on a relationship, but it was cut short following his death. Denny initially struggled with her grief, and filming the scenes challenged Smith as an actress. Denny eventually moved on with Martin Ashford (George Mason). On 14 September 2015, the character was killed off and Smith believed viewers must have cared about her to get such a dramatic exit.