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Greg Sadlier

Co-Founder & Director

Greg has been a leader in arts education since starting Upstage Arts Camps at the age of 18. He studied performing arts at Sheridan College and Music & Leadership at Rocky Mountain College. He has worked as a director, performer and private teacher, as well as four years with the KW Symphony in various roles. He was a member of the teaching team for Innovative Arts in Oakville Ontario. The Latin American world, especially Mexico, holds a large place in his heart, as he believes the arts can unite & change our world for the better, especially when it begins with young artists.


Darian Maddock

Assistant Director & Student Leader

Darian has lived in the Haliburton Highlands for 8 years, which included playing a lot of hockey as a goalie! His volunteer experience includes teaching at hockey camp, and he received a youth leadership award for his work with the Minden Food Bank. A graduate of Haliburton Highlands Secondary, he is a passionate and talented young musician (guitar & voice), actor and filmmaker. Darian is currently directing  and playing the lead in our musical School of Rock. 

Brooklyn Sidsworth

Haliburton Program Assistant

Brooklyn has been living in Haliburton for 14 years. She has attended Stuart Baker Elementary school and JDH and is currently attending HHSS. She has participated in multiple sports and has even sang in-front of multiple audiences before. You can also catch Brooklyn painting, drawing, and sketching in one of her many art books. Brooklyn loves to act and dance and has a strong passion for singing and visual arts!

Jack Walker

Haliburton Program Assistant

Ethan Chartrand

Haliburton Program Assistant

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