Urgol the Registrar

Tharashk Arena
When you meet him at the arena, he will first say:
 * Urgol the Registrar: What you want, ?
 * Urgol the Registrar: These tunnels for fighters only. You stay out—not bother real gladiators!
 * You: (Bluff) I'm a substitute gladiator. One of the regulars isn't feeling well.
 * Urgol the Registrar: You fight today? Urgol not believe you—what password Grogan tell you?
 * You: (Bluff) Grogan didn't give me a password. He said it wasn't important.
 * Urgol the Registrar: ??????????????????
 * You: (Bluff) The password is 'gelatinous cube'.
 * Urgol the Registrar: ??????????????????
 * You: (Diplomacy) All I want is to fight in the Arena. it's my life's dream. Come on—give me a chance!
 * Urgol the Registrar: Urgol sad, cry tiny kobold tears! Too tiny to see—but Urgol not let you inside.
 * You: (Intimidate) Let's keep this simple. Open the gates or I'll kill you.
 * Urgol the Registrar: EEEEEEE! Kill them! Kill all the softies! (Start battle)

After you kill the Troll Enforcers, Urgol will open the door for you:
 * Urgol the Registrar: No more killing! You deserve fight in Arena! Urgol give you what you deserve!

If you have the password from Master Myr'dril, however, only one option is given:
 * Urgol the Registrar: What you want, ?
 * Urgol the Registrar: These tunnels for fighters only. You stay out—not bother real gladiators!
 * You: I'm a substitute gladiator. Grogan gave me the password -- 'roast halfling'.
 * Urgol the Registrar: That the password. Go to Ready Room One for fight! (Door opens)