William Shatner

Kirk

Leonard Nimoy

Spock

DeForest Kelley

McCoy

James Doohan

Scotty

George Takei

Sulu

Walter Koenig

Chekov

Nichelle Nichols

Uhura

Mark Lenard

Sarek

Jane Wyatt

Amanda

Majel Barrett

Commander Chapel

Robert Ellenstein

Federation Council President

John Schuck

Klingon Ambassador

Brock Peters

Admiral Cartwright

Robin Curtis

Lt. Saavik

Catherine Hicks

Gillian

Michael Snyder

Starfleet Communications Officer

Michael Berryman

Starfleet Display Officer

Mike Brislane

Saratoga Science Officer

Grace Lee Whitney

Commander Rand

Jane Wiedlin

Alien Communications Officer

Vijay Amritraj

Starship Captain

Nick Ramus

Saratoga Helmsman

Thaddeus Golas

Controller #1

Marty Pistone

Controller #2

Scott Devenney

Bob Briggs

Viola Kates Stimpson

Lady in Tour

Phil Rubenstein

1st Garbageman

John Miranda

2nd Garbageman

Joe Knowland

Antique Store Owner

Bob Sarlatte

Waiter

Everett Lee

Cafe Owner

Richard Harder

Joe

Alex Henteloff

Nichols

Tony Edwards

Pilot

Eve Smith

Elderly Patient

Tom Mustin

Intern #1

Greg Karas

Intern #2

Raymond Singer

Young Doctor

David Ellenstein

Doctor #1

Judy Levitt

Doctor #2

Teresa E. Victor

Usher

James Menges

Jogger

Kirk R. Thatcher

Punk on Bus

Jeff Lester

FBI Agent

Joe Lando

Shore Patrolman

Newell Tarrant

CDO

Mike Timoney

Electronic Technician

Jeff Martin

Electronic Technician

Joseph Naradzay

Marine Sargent

Donald W. Zautcke

Marine Lieutenant

Monique DeSart

Madelaine (uncredited)

Madge Sinclair

Saratoga Captain (uncredited)

Kimberly L. Ryusaki

Tourist (uncredited)

Philip Weyland

Tourist (uncredited)