Katie Garner stars as Lizzie Guard , in the film Piranha 3DD .
Other cast includes Meagan Tandy as Ashley Sorby , Jean-Luc Bilodeau as Josh , Clu Gulager as Mo , Paul James Jordan as Travis Mitchell , Adrian Martinez as Big Dave , Irina Voronina as Kiki Odessa , Sierra Fisk as Bethany , Rozlyn Papa as Dawn , Jenna Hurt as Rochelle , Katie Garner as Lizzie ( uncredited ) , Cody Kennedy and Tabitha Taylor as Lifeguards ( uncredited ) , Tyler Vivencio as Luke ( uncredited ) .
Piranha 3DD