Frank has performed before millions of audience members including some talented friends. Sean Penn said to Ferrante, "You are a giantly talented guy with one foot in yesterday and one foot in today and you make it all your own." Hal Holbrook of Mark Twain Tonight referred to him as "an original." After a Ferrante performance of improvisation, Robin Williams told him, "You killed." And Carol Channing called him, "Woooonderful!"