Elizabeth Montgomery as Abigail Foster

James Naughton as Jack Parrish

Karen Grassle as Ellen Foster Holland

Michael Goodwin as David Holland

Robin Gammell as Dr. Langtry

Marcia Rodd as Lilly

Tim Maier as Matthew Holland / Young David

Dorothy McGuire as Beryl Foster

Lori Birdsong as Young Abigail

Robert DoQui as Principal

Sam Kwasman as Arthur

Jennifer Smith as Young Ellen