Mr Smith is Sarah Jane's supercomputer that she hides in her wall. It is really a Xylock- an alien race that has a huge memory store. It first communicated with Sarah Jane's laptop when she bought the house and it promised Sarah Jane that he would help her in keeping the Earth safe for as long as he was functional. There is occasional banter between it and K-9.
The Slitheen are a family of aliens from the planet Raxacoricofallapatorius. They go around the galaxy causing trouble and their main aim in life is to make as much money as possible regardless of whom they harm in the process. In The Lost Boy, they planned to bring the moon crashing down. To defeat these green monsters, you need to throw vinegar-based products on them, as they are made of calcium and the result is a huge, gooey explosion.
Clone species from the planet Sontar. They love wars and will do anything for a fight. They complained in "Doctor Who" for not being allowed to take part in the Time War.
Star Poets are a race of fictional aliens. After Maria Jackson saw Sarah Jane Smith talking to one in "The Sarah Jane Adventures" episode called Invasion of the Bane. It was revealed that Sarah Jane was using the Star Poet for help with a poem. Sarah Jane was given a device that would bring the Star Poet back, if she ever needed its help again. Another member of the same species, with the name Mary, was seen in the "Torchwood" episode "Greeks Bearing Gifts". Torchwood showed that the race can communicate telepathically using pendants and Sarah Jane Adventures showed that they could also fly. On the official Sarah Jane Adventures website, Mr Smith stated that they were "Butterfly People"", but there have been many Torchwood references to them as being "Arcateenian". In situations like this, the continuity is left unknown.
An evil being with no eyes hidden within a veil. All he wants to do is wreak havoc. He first took Sarah Jane out of her Time Line and replaced her with Andrea Yates- something that never happened. Because of this, the end of the world nearly happened. Secondly, he tempted Sarah Jane to save her parents that she never knew before they died and she did so and the whole Earth paid the price. Without parents, she never met the Doctor and without Sarah Jane, the Doctor failed to save the Earth and it was enslaved by the Trickster. During an episode of Doctor Who, Turn Left, one of the Trickster's Brigade, a Time Beetle, latched onto Donna Noble and made her turn right instead of left. She never met the Doctor, the Doctor died and so did everyone else in the whole universe. Finally, the Trickster tricked Sarah Jane's fiancé into saving his own life and marrying Sarah Jane. Although he did love Sarah Jane, if Sarah Jane married him, she'd forget about the Earth and leave it wide open to attacks. With the help of the Doctor and the sacrifice of her fiancé, the Earth was once again safe.
Acarina
The Acarina, or Acari, are the mites and ticks. They are an order of Arachnids.
Their fossil history goes back to the Devonian era. Most acarines are tiny: less than a millimetre. It is estimated that over 50,000 species have been described, but a million or more species may be currently living. The study of mites and ticks is called acarology.
Acarines live in practically every habitat, and include aquatic (freshwater and sea water) and terrestrial species. They outnumber other arthropods in the soil and detritus. Many are parasitic, and they affect both vertebrates and invertebrates. Most parasitic forms are external parasites, while the free living forms are generally predators and may even be used to control undesirable arthropods. Others help to break down forest litter and dead organic matter such as skin cells. Others still are herbivorous and may damage crops. Damage to crops is perhaps the most costly economic effect of mites, especially by the spider mites and their relatives, earth mites, thread-footed mites and the gall and rust mites.
Some parasitic forms affect humans and other mammals, causing damage by their feeding, and can even be vectors of diseases such as scrub typhus and rickettsia. A well-known effect of mites on humans is as an allergen which stimulates asthma. Predatory mites may be used in pest control and herbivorous mites used to attack weeds. A positive contribution of the Acari is their normal functioning in ecosystems, especially their roles in the decomposer subsystem.
A hugely successful group with a large number of species. Mites are among the most diverse and successful of all the invertebrate groups, but because of their small size (most are microscopic) go largely unnoticed. They have exploited many habitats. Many live freely in the soil or water, but there are also a large number of species that live as parasites on plants, animals, and some that feed on mould (fungi).
Ticks are blood-sucking ectoparasites, mostly of mammals and birds. They wait on grass or bushes, and jump onto passing animals. A number of birds specialise in picking them off larger animals: the Cattle Egret and the Oxpecker for example. They are quite serious pests, and can be hard to get rid of. They are vectors, carrying diseases such as Lyme disease.
Ahab
Ahab (; ; ) was King of Israel and the son of Omri. He is written about in the Books of Kings and the Books of Chronicles.
Ahab son of Omri did "more evil in the eyes of the Lord than any of those before him" (1 Kings 16:30), as it is written in the Bible. Many think - and say - that it is probably because of his evil wife, Queen Jezebel, daughter of Ethbaal king of the Sidonians. She was even more sinful than Ahab, and comes out in the Bible, commanding Ahab to do most of the things she wants. She serves the idol Baal and tries to make Ahab and all the Israelites worship it as well.
One of Ahab's most famous enemies is an old prophet (a man of God) named Elijah. He continually rebukes Ahab for being so disobeying to the Lord, and when Ahab summoned all the prophets of Baal against Elijah at Mount Carmel, and set two altars for them, Elijah won by calling on God and letting fire come and burn the sacrifice, and the prophets of Baal were immediately killed by the Israelites. Importantly, even here Ahab does nothing, either to stop or help Elijah.
Once, there was a quite well-known war between Ben-Hadad king of Aram and King Ahab. Ben-Hadad came and, "with thirty-two kings with horses and chariots" (1 Kings 20), he attacked Samaria. He said to King Ahab:
"Your silver and gold are mine, and the best of your wives and children are mine."
This King Ahab agreed with—but after that, Ben-Hadad sent another more demanding command: "I sent to demand your silver and gold, your wives and children. But about this time tomorrow I am going to send my officials to search your palace and the houses of your officials. They will seize everything you value and carry it away."—and King Ahab grew annoyed. He rejected that command, and so Ben-Hadad decided to battle against Ahab. And after that the Lord sent a prophet and said, "Do you see this vast army? I will give it into your hand today, and then you will know that I am the Lord."
And he also added that the young officers of the commanders will do it, and that King Ahab would start the battle.
Encouraged by this, Ahab took the young officers of the commanders, 232 men. Then he assembled the rest of the Israelites, 7,000 in all. They set out at noon while Ben-Hadad and the 32 kings with him were in their tents getting drunk, and defeated them all.