Marlo Thomas
— Tess Lynd
Martin Sheen
— Ken Lynd
Barry Tubb
— Jeff Lynd
Talia Balsam
— Margie
Ben Piazza
— Dr. Mark Waldo
John Terlesky
— Pete Roberts
Corinne Camacho
— Claire
Matthew Laurance
— Nate
Joseph Adams
— Stu
Richard Sargent
— Pat Malone
Thomas Peacocke
— Dr. Daniels
Moira Walley-Beckett
— Sue Wister
Jeff Irvine
— Hank
Dave Sayer
— Counterman
Rebecca Staples
— Maribel
Kim Kondrashoff
— Dev
Roman Podhora
— Ray
Peter Giaschi
— Mark
John Ormerod
— Kerry
James Tyson
— Swim Coach (uncredited)