Goddard's son was graduating from college so he pulled out when he learned what the exact dates he was needed were. (scheduling is a balancing act and we couldn't change the dates to accomodate him.) Andy Probert had all the lines for this scene (which were the same ones Goddard would have had) up to the filming day. I both split them up and wrote extra ones on-set when Gil and Ken were added to the mix. (I feel it was better before the addition of new characters - more tight. To me the "captain's summit" idea didn't convey urgency, it was just clumsy. But writer's do as they are told to...)
You can find out what Andy's original lines were by looking at the script distributed for the shoot, Greg. (you'll notice that the character was always intended to be named Sheehan)
“Kitumba”
TEASER
EXT. SPACE - ENTERPRISE FLYBY (OPTICAL)
KIRK (V.O.)
Captain’s Log: Stardate XXXX.X Urgent, cryptic orders have mysteriously diverted the Enterprise...
ANOTHER ANGLE: SHOWING APPROACH to Space Station K-7. (OPT)
KIRK (V.O.) (CONT’D)
...to Space Station K-7, and the disputed area with the Klingon Empire.
INT. CORRIDOR
KIRK, SPOCK, MCCOY stride down the corridor.
MCCOY
Jim, what’s going on?
KIRK
You know as much as I do, Bones. But we’re not the only ship involved.
SPOCK
We’ve monitored coded orders to twenty-nine vessels and twelve Starfleet installations.
McCoy reacts.
KIRK
This sector has been extremely unstable since the Organians disappeared.
SPOCK
The Klingons have been increasingly active after realizing enforcement of the treaty is now problematic.
INT. TRANSPORTER ROOM - CONTINUOUS
Kirk, Spock and McCoy ENTER. Scotty and a CREWMAN are at the control panel.
MCCOY
Well I don’t like it. This cloak and dagger stuff always manages to fill my sickbay.
SCOTT
We’re ready, sir.
KIRK
Let’s get some answers, gentleman. Energize.
ADMIRAL SHEEHAN materializes on the pad.
KIRK (CONT’D)
Admiral Sheehan. You know Mr. Spock, Dr. McCoy - Commander Scott.
SHEEHAN
Gentlemen.
KIRK
Jack, what’s this all about?
SHEEHAN
Klingon activity has trailed off.
KIRK
There haven’t been any reports of pirating or raids in months.
SHEEHAN
They’ve pulled back to concentrate their efforts. Intelligence drones report Klingon battle groups building in orbit around their planets on the border.
SPOCK
Wargames are not uncommon training tactics.
SHEEHAN
This is bigger then anything we’ve seen before. A large scale attack on the Federation is imminent.
KIRK
Admiral, I have great respect for Starfleet Intelligence, but interpreting Klingon mentality...
SHEEHAN
It’s confirmed, Jim.
The information settles hard on the seasoned space veterans.
KIRK
Our orders?
SHEEHAN
Proceed to the Klingon home world: once there, convince the Emperor to abandon their plans for war.
MCCOY
To Qo’nos? With one starship? You’re talking suicide.
SCOTT
We’ll be facing the entire Klingon fleet before we make it a parsec into their space.
SHEEHAN
You’ll have an advantage. Mr. Scott: beam over your guest.
Scott operates the transporter controls.
KIRK
Who?
SHEEHAN
Your best chance to get to Qo’nos safely. He’ll provide any details you may need to complete this mission successfully.
A figure begins to shimmer into form on the transporter.
SHEEHAN (CONT’D)
The Organians once said we’d end up working together despite our differences, Jim. That’s what you two need to do -- to stop this war -- before it begins.
K'SIA, a Klingon armed with ceremonial weapons, and with forehead ridges, materializes.
Kirk and crew are shocked.
END OF TEASER
ACT ONE
EXT. SPACE - STATION K-7 AND THE ENTERPRISE DOCKED THERE (OPTICAL)
KIRK (V.O.)
Captain’s Log: Supplemental. With war looming, the Enterprise has been ordered deep into Klingon territory: to the Klingon homeworld. Our mission: to convince their Emperor to stand down. Our guide: a Klingon...
INT. TRANSPORTER ROOM
K'Sia steps off the transporter: he and Kirk eye each other warily. The Captain is on guard, matching the man’s steps.
KIRK (V.O.)
...who shows no signs of having been affected by the Augment Virus.
The Enterprise crew are shocked at his appearance.
K'SIA
(amused, not unkindly)
Have you never met a Klingon, Earthers?
SPOCK
Only those genetically engineered.
KIRK
Improved with human DNA.
K'Sia grabs for his sword. Sheehan steps between them.
SHEEHAN
K'Sia! This is Captain James T. Kirk, commander of this ship. Captain: K'Sia.
K'Sia relaxes slightly. Kirk does not.
SHEEHAN (CONT’D)
He was tutor to the Emperor: and he’s working with us, Jim.
KIRK
No Klingon would ever defect. And I wouldn’t trust him if he did.
K'Sia, an older warrior, has both speech and manner tempered by years of scholarly study: but his diplomacy still comes to him with difficulty, pressed upon him by his mission.
K'SIA
I’ve not defected, nor am I working with you. We merely have a mutual goal.
SHEEHAN
He’s convinced Starfleet this mission can succeed.
K'SIA
If we can reach the Kitumba, this war can be averted, Captain.
MCCOY
What’s a “Kitumba”?
SPOCK
Not a what, Doctor: a whom.
SHEEHAN
The Kitumba is their Emperor: a sacred leader who governs as a god.
K'SIA
He carries the blood of Kahless. All of the planets, peoples and battle fleets of the Empire are his personal property.
MCCOY
Civilized people don’t own other people.
K’SIA
The history of your Earth says otherwise, Doctor.
KIRK
A loyal slave. And yet you come here prepared to help your enemies defeat your Emperor. Why?
SHEEHAN
The Kitumba is a 16 year old boy. From birth he’s been sheltered, never leaving Qo’nos. He’s little more than a figurehead. The real power now lies with the regents: the Warlord Malkthon and his deputy, Kali.
K'SIA
For five years Malkthon has been gathering forces loyal to himself, amassing power which is not rightfully his.
KIRK
And the Kitumba will ignore his closest advisor and regent to listen to his dismissed and, I assume - disgraced - tutor?
SHEEHAN
As Regent, Malkthon declared the boy’s schooling finished to get rid of K’Sia. My gut tells me if the Kitumba knew the reality of what they face he wouldn’t endorse the war Malkthon plans.
KIRK
The more I hear of this, the less I like it. A Klingon that would betray his own people because he’s afraid of war? I don’t buy it.
K'SIA
I do not fear war, Captain: I relish it.
KIRK
Really? What does scare a mighty Klingon warrior?
K’SIA
A dishonorable death. (beat) This is not war, Captain: it is certain death, without purpose. As formidable as the forces that Malkthon has built, the Federation’s are no less so. I know the power of your starships -- I fought them in my younger days. Only mutual annihilation can come from open war between us now.
SPOCK
If the Kitumba comes of age in the midst of such a war, Klingon pride will demand that he continue it.
SCOTT
And Malkthon will stay in control: there’ll be no avoiding it.
Kirk considers, makes a decision.
KIRK
Doctor, please escort K'Sia to sickbay for an examination.
K'SIA
You question my honor, Captain? So be it. Subject me to all your truth devices - you will find I do not lie. The Empire prepares a massive strike: from many directions, with all our forces.
MCCOY
Mr. K’Sia, if you’re going to be on this ship I need to examine you.
K'Sia is unconvinced.
MCCOY (CONT’D)
We’re flying into a warzone. Do you want me to figure out your biology while I tend your injuries?
K'SIA
A warrior would not need the interference of an Earth doctor.
SPOCK
A tutor and peace emissary might.
K'Sia relents and EXITS with McCoy.
KIRK
Jack, you’re risking my ship and the lives of my crew on a slim chance that this Klingon is trustworthy.
SHEEHAN
A single starship has the best chance of getting through. K'Sia can help you avoid patrols and open battle.
KIRK
Or he can lead us into both.
SPOCK
Capturing the Enterprise would allow the Klingons to dissect it’s technology...
SCOTT
..and destroy the balance of power.
SHEEHAN
Which is why the Enterprise can’t fall into Klingon hands.
Sheehan climbs back onto the Transporter Dais.
SHEEHAN (CONT’D)
Are we clear on that point, Captain?
KIRK
Perfectly. We’re expendable.