As for the Three Kings, they are dominated vocally and dramatically, as I imagine God intended, by Gregory Sheppard as King Balthazar. He had a deep resonant voice and a regal presence.
- Buffalo News

All of the singers were to be applauded but special mention should be made of the performances by Chris Mallory and Gregory Sheppard. I hope that Sheppard will sing again in Ottawa since his rich bass voice is a delight to hear.
- Societe D'Opera De La Capitale Nationale

Bass-baritone Gregory Sheppard made a fine Mr. Page, his voice gaining in authority, focus and power with each outing.
- Opera News Magazine

Gregory Sheppard's composed and dignified Don Alfonso, on the other hand evoked laughter with the raised eyebrow or eloquently blank stare. Mr. Sheppard's singing was as smooth and unforced as his acting.

Karen Parks and Vanessa Ayers made especially strong impressions, as did Gregory Sheppard, a bass, in Dorothy Rudd Moore's "I Have Been a Slave All My Life."
- The New York Times (2)

Gregory Sheppard's extraordinary voice filled the St. Joachim Chapel throughout the October 27 premiere concert of the Rimscha 2009 Season.
- Sturbridge TImes

Sheppard fills hall in triumphant return.
- The Post Standard

The secondary performers were mostly excellent. The difference made this listener wonder at the casting decisions that had not placed these singers in the leading roles. Captain Zuniga was sung by Gregory Sheppard, bass-baritone with a full, rich tone that stood out and made us want to hear much more of him.
- Wilmington Morning Star

Gregory Sheppard was a deep voiced and sonorous Sarastro.
- Opera Canada

Rarely has such a fine trio of male singers graced a Western New York stage. Gregory Sheppard as Balthazar had a deeply resonant voice that blended well with his character.
- The Buffalo Times