Celebrity contestants Jason Alexander, Michael Mizanin and Cheryl Burke.

Celebrity contestants Andy Richter, Vanilla Ice and Caroline Rhea.

Celebrity contestants Donny Osmond, Jeff Garlin and Amber Riley.

Celebrity contestants Melissa Joan Hart, Tituss Burgess and Lacey Chabert.

Anthony Michael Hall plays for Save the Children, Mario Cantone plays for The Actors Fund, and Loni Love plays for Project Angel Food.

Joey Fatone plays for Barnstable Brown Diabetes Center at the University of Kentucky, Wanya Morris plays for Boys and Girls Clubs of America and Shawn Stockman plays for Children's Hospital of Philadelphia.

Vivica A. Fox plays for Alexandria House and Best Buddies International, Michelle Trachtenberg plays for Good+Foundation and Jason Mraz plays for True Colors United.

Celebrity contestants Nia Vardalos, Jodie Sweetin and John Michael Higgins.

Celebrity contestants James Pickens Jr., Brooke Burns and Johnny Weir.

Tara Lipinski plays for Amy Selkirk Breast Cancer Research Fund at the Baylor Scott and White Dallas Foundation, Raven-Symoné plays for Goodwill Southern California, and Tori Spelling plays for Every Mother Counts.

Celebrity contestants Marcia Cross, Karl-Anthony Towns and Anthony Anderson.

Von Miller plays for Von's Vision Foundation; Ali Wentworth plays for Good+Foundation: Laverne Cox for Trans Justice Funding Project.