About joining the cast of Billy Elliot, Vesperman said in a statement, "After a few auditions around America, I was the happiest boy on earth when I found out that I would be coming to London and to train to be Billy Elliot. It’s so hard being 5,000 miles away from my family and friends for so long, but it’s worth it. Being Billy has changed my life so much - the training, experience, and best of all the wonderful people I get to work with. I miss my family a lot, but being in the show keeps us so busy that I don’t really think about it too much. I am the sixth American Billy to star in the London production and I hope that I can maintain the high quality shown by my predecessors."
Vesperman joins 12-year-old Ryan Collinson from Southport, Josh Baker (13 years old from Rochester), Dean Charles-Chapman (13 years old from Romford, Essex) and Scott McKenzie (13 years old from Dumbarton, Scotland) who alternate in the role of Billy. Reece Barrett (12 years old from Exeter), Connor Kelly (12 years old from Scunthorpe), Connor Lawson (12 years old from Shotton, County Durham) and Joe Massey (11 years old from South Wirrell) alternate in the role of Billy’s best friend, Michael; and Francesca Mango (11 years old from Northumberland), Emily Smith (11 years old from County Durham) and Emily Williams (9 years old East Wingate, County Durham) alternate in the role of Debbie.
They perform alongside Genevieve Lemon (Mrs. Wilkinson), Martin Marquez (Dad), Tom Lorcan (Tony), Diane Langton (Grandma) and Chris McGlade (George), Kay Milbourne (Dead Mum), Kevin Patricks (Mr. Braithwaite), Barnaby Meredith (Older Billy) and ensemble members Ashley Andrews, David Bardsley, Romy Baskerville, Paul Basleigh, Alan Bradshaw, Spencer Cartwright, Caroline Deverill, Gillian Elisa, Helen French, Tim Funnell, Sergio Giacomelli, Shaun Henson, Stevie Hutchinson, Stuart Ramsay, Derek Richards and Russell Wilcox and swings Craig Armstrong, Dawn Buckland, Lucinda Collins, Kieran Jae and Mike Scott.
Billy Elliot the Musical, according to press notes, is the "joyous celebration of one boy’s journey to make his dreams come true. Set in a small town, the story follows Billy as he stumbles out of the boxing ring and into a ballet class, discovering a surprising talent that inspires his family and his whole community and changes his life forever."