- Sheridan nuking the Blackstar.
- Hell, any time John "Nuke 'Em" Sheridan uses a nuke. Effective usage throughout the series and TV films: Four successes out of four.
- His speech declaring B5's independence from Earth is the second of two awesome speeches from the episode "Severed Dreams" (see "Delenn" for the first one).
Sheridan: In the last few hours, we have learned that warships are coming this way from Earth, their orders are to seize command of Babylon 5 by force. As commanding officer and military governor of Babylon 5, I cannot allow this to happen. President Clark has violated the Earth Alliance Constitution by dissolving the Senate, declaring martial law, and personally ordering the bombing of civilian targets on the Mars colony. He is personally responsible for the deaths of hundreds of innocent people. Following these attacks Orion 7 and Proxima 3 have broken away from the Earth Alliance, and declared independence. Babylon 5 now joins with them! As of this moment, Babylon 5 is seceding from the Earth Alliance! We will remain an independent state until President Clark is removed from office. At the end of this current crisis, anyone who wishes to leave for Earth is free to do so. Meanwhile, for your own safety, I urge everyone to stay in their quarters until this is over. That is all.
- Sheridan's smackdown on not one but two First One races in B5. From the episode Into the Fire of season 4:
Sheridan: The Vorlons ask only one question over and over: "Who are you?" You, for you the question is "What do you want?" I have never heard you answer that question. Who are you? What do you want? ... It doesn't matter which side wins this today. A thousand years from now, it'll start all over again. You're as trapped in this cycle as much as we are. But we can't afford it anymore. We don't need it. We don't need you. We've learned how to stand on our own. We'll make mistakes, but they'll be our mistakes, not yours. ... We refuse to take sides in this anymore. And we refuse to let you turn us against one another! We know who we are now. We can find our own way between order and chaos. ... It's over because we’ve decided it's over! Now get the hell out of our galaxy! Both of you!
- From "Intersections in Real Time":
Sheridan: You know, it's funny I was thinking about what you said. 'The pre-eminent truth of our age is that you cannot fight the system.' But if, as you say, truth is fluid, that the truth subjective, then maybe you can fight the system as long as one person refuses to be broken, refuses to bow down.
Interrogator: But can you win?
Sheridan: Every time I say 'no'.
- Sheridan's Mind Screw / Kansas City Shuffle in the episode "Rumors, Bargains, and Lies" is made of total win. Remember, absolutely NOTHING out of the ordinary happened today in sector 83 x 9 x 12....
- Sheridan reappearing after his trip to Z'ha'dum.
Drazi Ambassador: Captain, we're sorry. We thought you were dead.
Sheridan: I was. I'm better now.
- How he ended up on Z'ha'dum in the first place. They broke his wife, and then when they realized what they had and how she could be of use to them (besides as the core of a ship), they fitted her with a new, loyal personality and had her contact him. So, he went to their home planet, and crashed his White Star into it...while it was loaded with nuclear weapons. He'd said that if he went down in Z'ha'dum, he wouldn't go easy or alone. He took the capital city of the Shadows with him.
- They asked him to go to the dark side. He gave them a gigaton worth of "no". To put this in perspective: the energy unleashed by a one-megaton explosion could run your house for a hundred thousand years. Sheridan used one thousand times that.
- Sheridan again, making his feeling on the subject of Nightwatch very clear:
Sheridan: No more! No more of you! No more Nightwatch, no more hostages, no more lies! Not on my station! Not on my watch! No more! No more!
- And this is while he's physically pummeling a Nightwatch hostage-taker and saboteur in full view of station civilians. That had to be one hell of a water-cooler story the next day.
- Sheridan's "apology" in The Fall of Night. Even if he only gave it to a mirror, the implication is that he was fully prepared to actually say it.
"I'm sorry we had to defend ourselves against an unwarranted attack! I'm sorry that your crew was stupid enough to fire on a station filled with a quarter million civilians, including your own people! And I'm sorry I waited as long as I did before I blew them all straight to Hell!... 'As with everything else, it's the thought that counts
- "You tell your government that the only man to survive Z'ha'dum sends this message. We can end this, not just for now, not just for the next thousand years, but forever!"
- When Sheridan's liberation fleet finally confronts Earth itself:
This is Captain John Sheridan. We are here on the authority of a multi-planetary force, that can no longer stand by and watch one of their greatest allies falling into darkness and despair. We are here on behalf of the thousands of civilians murdered under orders from the current administration, who have no one else to speak for them, and on behalf of the EarthForce units that have joined us to oppose the tyranny that has darkened Earth, ever since President Santiago was assassinated three years ago. We are here to place President Clark under arrest, to disband Nightwatch, and return our government to the hands of her people. We know that many in the government have wanted to act, but have been intimidated by threats of retaliation against your families, your friends. You are not alone anymore. We call upon you to rise up and do what's right! We have drawn their forces away from Earth and disabled them. The time to act is now! This is not the voice of treason. These are your sons, your daughters, whose loyalties have never wavered, whose beliefs in this alliance has [sic] forced us to take extraordinary means! For justice, for peace, for the future…we have come home!
- Sheridan and Delenn's actions in "Come the Inquisitor" where they are both willing to die for the other, alone, away from all friends and those who would remember them. It shows the Inquisitor that not only are they good people, but the right people in the right place at the right time.
- Shaming Kosh into getting the Vorlons to battle the Shadows, since the other races will never join the fight without seeing for themselves that the Shadows are not invulnerable. It's an absolute masterpiece of Screw You, Elves! as he gets right in Kosh's face, flips him off a few times, and absolutely refuses to back down, even to the point where Kosh is pissed off enough to threaten to kill him with his brain.
- Hitting his Rage Breaking Point when dealing with the minor powers of the Alliance after the Centauri have broken off relations with the Alliance, and have broken a planetary blockade and destroyed several ships. Arguably the most awesome rant of the entire fifth season.
[quietly, with Death Glare]
: That's enough... [loudly]
I said that's enough! Now we gave you a promise. And we are bound by that promise! And damn you for asking for it! And damn me for agreeing to it! And damn all of us to hell because that is exactly where we're going! We talked about peace! You didn't want
peace! We talked about co-operation! You didn't want
co-operation! You want war! Is that it? You want a war? Well, you've got a war!
- Also for Boxleitner, as in the script volumes JMS expresses his regret at the actor having to say that speech several times because of various technical issues, hitting the same exhausting emotional high every time.
- His use of the "Bonehead Maneuver" to kill two birds with one stone. First, to destroy the jump gate to the Markab homeworld to prevent graverobbing and second, and most importantly, to destroy the Shadow Vessel following them, signifying the first victory over the Shadows in possibly 1,000 years.
- After President Clark begins ordering his destroyers to attack defenseless civilian refugee ships, Sheridan, who had pretty much been in a cold war since breaking off Earth, begins the next episode with probably the quickest and most perfect Captain's Log ever.