The Teller of Uncomfortable Truths.

"Part of Angel's trouble is that he refuses to listen to the person who most frequently Tells him The Truth in the course of this season : Spike, who reverts to his Buffy Seasons Two to Four status as 

The Trickster Teller of Uncomfortable Truths. "

Kes is certainly an Elf or a Pixie - 

a Trickster, to be sure, but an entirely too benign one.

She lacks Danger.

What you need instead, is...
A Dark Fairy

FEMALE CADET: 

Admiral? Some of us were talking 

before class and we were curious. 

How extensive was Seven of Nine's 

involvement with Unimatrix Zero?

JANEWAY: 

I'd, er, prefer not to discuss 

Seven of Nine.

FEMALE CADET: 

Yes, ma'am. Sorry.

[Cargo Bay two]

(Seven is regenerating. Janeway enters and turns off her alcove.)

SEVEN: 

Captain. 

JANEWAY: 

Step down, please. 

Seven, you disobeyed my direct orders, 

and as a result you condemned 

A Sentient Being to its Death. 

[ But she isn't part of the Command Stucture - neither were Kes and nor is Neelix. Her subordination to the onboard hierarchy is volitional and only The Captain can give her orders. And we know this - for example - because not Chakotay or Torres can tell Neelix what to do in his kitchen, except as directed to by The Captain, when acting with her authority.  ]

SEVEN: 

By doing so, I also diverted the Hirogen attack. 

An attack which would have destroyed us. 

JANEWAY: 

Maybe not. 

In any case, The Decision wasn't yours to make. 

[ It bloody well was if it could have killed her (or others), which it could. ]

SEVEN: 

The creature broke through the forcefield. 

I had no choice. 

JANEWAY: 

I didn't come here to debate your decision. 

I came here to inform you of the consequences. 

When you first came to Voyager, 

I decided to grant you the same liberties and freedoms 

of any crew member, 

because I wanted you to be 

A Part of This Family.

 

And I've been willing to accommodate 

your unique way of doing things, 

even when you rubbed somebody the wrong way 

or violated protocol. 

But this time, 

I can't accommodate you. 

From this point forward, 

you will no longer have access 

to any primary systems on this ship. 

Not without my direct authorisation. 

If you attempt to circumvent me, 

I'll throw you in the Brig. 

I still need your expertise 

in the Astrometrics lab if you're willing. 

If not, you can spend your time here 

in the Cargo Bay. 

Is that understood? 

SEVEN : 

Yes. 

(Janeway turns to leave.) 

SEVEN: 

It is puzzling. 

JANEWAY : 

What's that? 

SEVEN: 

You made me into 

An Individual. 

You encouraged me to stop thinking 

like a member of The Collective, 

to cultivate My Independence 

and My Humanity. 

But when I try to assert 

That Independence 

I am punished. 

JANEWAY : 

Individuality has its limits, 

especially on a starship where there's 

A Command Structure. 

[ Which she, very explicitly, is not in. ]

SEVEN: 

I believe that you are punishing me 

Because I do not think the way you do. 

Because I am not becoming 

more like you. 

You claim to respect My Individuality, 

but in fact you are frightened by it.

JANEWAY: 

As you were.