Genius Bruiser: He's the best with machinery and tools among the Rangers.
Running Gag: He never gets to drink a smoothie, does he?
Samaritan Syndrome: His previous jobs all revolved around helping people, but his uncompromising principles always led to him getting fired. The turning point was the incident that led to him saving the bus full of refugees seen in the pilot episode.
Fair Weather Friend: Was surrounded by these before the Venjix attack. Special mention must go to the one who threw her off a moving truck, then expected to still be best friends a year later, insisting that she knew Summer would be fine.
Butt Monkey: Poor Ziggy. It seems that barely an episode can go by without the Green Ranger totally embarrassing himself in some way. Best reflected by his first ever morph. Previous rangers, whether they Jumped at the Call, were thrown in the cockpit or even stole their powers, always morphed with a fair amount of dignity and grace the first time. What's Ziggy's first line upon realising what he has become?
Ziggy: Woah! I'm a Power Ranger! I don't wanna be a Power Ranger! I do not want to be a Power Ranger!
He then proceeds to get kicked all over the place.
Giving the Sword to a Noob: The Rangers' morphers are designed to be operable only by the first person to use it, as it recorded his DNA as a security lock. Because of the situation, it was he or one of the bad guys, so...
Improv Fu: The Plucky Comic Relief became a Power Ranger by accident and out of desperation so he had no qualifications or skills to actually be a good fighter. Instead he mostly runs around a fight scene dodging enemies or using nearby props as weapons and ways to protect himself. He gets better at hand to hand throughout the series though.
Badass: After the first few episodes, it's hard not to think he's a badass. Especially since the show goes through every length to tell you so
Badass Driver: "If that thing has a steering wheel, I can drive it." He makes it through the barricade in broad daylight during the first episode, something Ziggy thought was impossible, and later does it again with Tenaya providing cover fire.
Irony: Somewhat. When she was growing up in Alphabet soup, she was told that she was allergic to the sun and could never go outside. This was a lie to make sure she never escaped. However K. is never seen outside without a cloak, the result of her having very sensitive and fair skin from being cooped inside up by a lie. The lie caused the truth in a way.
Dr. K: The material is a self-assembling nanofiber formed with an inter-cellular shape memory alloy.
Schoolkids on a field trip get a Q&A session with the Rangers, and K has to be restrained when the S-word comes up.
She is very insistent on terminology. During the Q&A session she holds with her Series Operators in the beginning of "Ranger Blue", Scott asks her about the eyes in front of their Zords. She tells them that they are not eyes, but that they are actually optical field scanning sensors for their cockpit's displays. But, of course, this doesn't go around the fact that...
Dillon: They look like eyes! Ziggy: Big, googly anime eyes.
Nice Job Breaking It, Hero: She's the one who developed the Venjix virus albeit just for the building she was in and nothing beyond that. But in truth this should extend to the organization that was looking after her. As if they had just let her get out once in a while. She would never have made it in the first place and even then should've at least let her install the firewall. They knew what she was a genius so they should've at least heeded her words.
Too Dumb to Live: ONLY regarding Dr. K. He tries to arrest her, the only person in the world who fully understand the Ranger technology and therefore, the only person capable of stopping Venjix, after discovering she created it.
Ascended Extra: Despite not being listed as a main character, Hicks has a considerable amount of screentime throughout the series. Especially when it's revealed that he was a Half-Human Hybrid under Venjix's control since day one.
Sealed Evil in a Can: It began its existence more or less as a sealed evil. The program for the sentient, self-replicating, computer virus was initially created and contained in a single laptop. That is until Dr. K, in a attempt to escape her circumstances, decided to infect Alphabet Soup's computer network with the virus but was stopped short from installing a firewall to prevent further spread. The result was an infection of nearly every computer system connected to the internet and the destruction of nearly the entire human race.
It is hinted that it also becomes one of these again, as opposed to being destroyed, at the end of RPM with the Venjix Palace music playing as the camera focuses in on Ranger Red's morpher with a blinking red light.