Matt Dillon as Ralph

James Broderick as Dad

Barbara Bolton as Mom

Babe Sargent as Ludlow Kissel

Jeff Yonis as Schwartz

William Lampley as Flick

Lisa Jacobsen as Pamela

Jay Ine as Randy

Jean Shepherd as Narrator / Adult Ralph (voice)

John Blood as John

Christopher Childs as Mailman

Arnie Cox as Ace

Frank Dolan as Mr. Dirks

Ruth Edinburg as Mother at Picnic

Dana Hardwick as Ledbetter

Andrea McCullough as Clara Mae

Paul McMaster as Hot Dog Man

Mike Moore as Wilbur Duckworth

Jodi Purdy-Quinlan as Screaming Girl

William R. Riker as Uncle Carl

William J. Sahlein as Zudoc

Brian Smiar as Gus

Harriet Wilson as Mrs. Kissel