We are thrilled to officially welcome Dennis Bisgaard as Penn Charter’s interim head of school!
With over 20 years of experience leading top independent schools across the country, Dennis brings to Penn Charter a deep commitment to student growth, community and Quaker principles and practices.

Dennis’s journey is shaped by a global life experience prior to his U.S. career as a classroom teacher, coach, advisor, and DEI practitioner. Most recently, he served as Head of Maret School in Washington, D.C., where he advanced strategic planning, curricular review, athletics facilities and community spaces. Previously, Dennis served as Interim Head of School at Friends School of Baltimore, Park Tudor School, and The Northwest School. He spent 12 years as Head of Kingswood Oxford School in Connecticut, where he expanded fundraising and academic opportunities, strengthened facilities, and founded the Kingswood Oxford Leadership Institute for Educators of Color.
Dennis also served as Founding Head at Whittle School & Studios in D.C., Associate Head at Shady Hill School in Cambridge, and as a teacher and administrator at Collegiate School in New York City and Bryn Mawr School in Baltimore. Dennis holds advanced degrees from Columbia University and Odense Universitet in Denmark and has served on the NAIS Board of Trustees.
From the beginning of our interim head of school search, Penn Charter looked for an interim head whose presence, warmth and capacity for genuine engagement would reinforce Penn Charter’s mission, culture and Quaker values. We believe Dennis will not only serve as a stable leader for the next two academic years but will also continue to advance Penn Charter’s essential strategic planning work in preparation for a permanent head of school to begin in 2028.
Penn Charter Board of Trustees (2026-27)
Brigitte Addimando P '28, '29
Chris Carroll OPC '96
Grace Sharples Cooke P '08, '11
Jane F. Evans Hon. 1689, P '93, '95, '98, GP '24, '26, '32
Amy E. Gadsden P '23, '23, '27
Mark D. Hecker OPC '99
Paul H. Hough OPC '77, Clerk
Matthew B. Kessler OPC '99
Daniel Killinger OPC '88, P '23, '28
Adam Koppel OPC '87
Leela Morrow P '29, '32, '37
Ken Murphy OPC '82, P '09, '19, '21
Andrew Newcomb P '29, '32
Florencia Greer Polite P '22, '30
Robert L. Rosania OPC '82, P '22, '23
Sujatha Srinivasan P '30, '34
Gregory E. Summers OPC '89, P '23, '26
Robert Vosburgh
Stephanie T. Walters OPC '95, P '25, '30
Senior Trustees
Richard A. Balderston OPC '69, P '02, '05
Nelson J. Luria OPC '59
"During our visit, my wife, Monica, and I felt something distinctive about Penn Charter—in the warmth of its people, the vitality of the campus, and the quiet strength of its Quaker values,” shared Dennis. “I am deeply honored and humbled to become part of this remarkable community."
Leadership Team
Ashley Augustin
Titles:
Director of Diversity, Equity, Inclusion & Belonging
Email:
Dennis Bisgaard
Titles:
Interim Head of School
Email:
David Brightbill
Titles:
Associate Head of School
Email:
Kathleen Clinchy
Titles:
Middle School Director
Email:
Daniel DiBerardinis
Titles:
Director of Athletics
Email:
Lisa D'Orazio
Titles:
Director of Communications
Email:
Alyson Goodner
Class of:
1996
Titles:
Director of Center for Public Purpose; Religious Studies and Philosophy Teacher
Email:
Stephen Graham
Titles:
Chief Financial Officer
Email:
Naté Hall
Titles:
Director of Enrollment Management
Email:
Michael Higgins
Titles:
Director of Human Resources
Email:
Brendon Jobs
Titles:
Upper School Director
Email:
Timothy McGuriman
Titles:
Chief Operations Officer
Email:
Thu-Nga Morris
Titles:
Director of Lower School
Email:
Chad O'Kane
Titles:
Chief Advancement Officer
Email:
Marceline Sosa
Titles:
Assistant Head of School
Email:
Jody Sweeney
Titles:
Director of College Counseling
Email:
