Stern, playful, encouraging, hard-working, tough or loving - no matter how we describe our own father, he leaves an indelible imprint.Claire Halliday spoke with a range of well-known Australians who shared their stories about the way their dads shape their lives.From memories of deep warmth and closeness to stories of difficulty and tragedy - everyone's story is unique.What's common in these stories, from some of Australia's much-loved comedians, singers, radio and TV personalities, chefs and authors, is that fathers have a defining impact on our attitudes and choices in life.Featuring the stories of Danny Katz, Ann Peacock, Anthony Callea, Darryn Lyons, David Koch, Joe Hildebrand, Kerri Pottharst OAM, Neil Mitchell, Normie Rowe AM, Catriona Rowntree, George Calombaris, Paul West, Jo Stanley, Christian Wagstaff, Em Rusciano, Matthew Reilly, Rev Tim Costello, Father Bob Maguire, and Santo Cilauro... as told to Claire Halliday.