Famous Wizards

Many of these wizards are from Toril, some are even from other worlds such as Oerth or Krynn.  

Bigby

Bigby's Hand   Bigby was an evil NPC. Gygax managed to subdue Bigby with a charm spell, making him his servant. Overtime, Bigby left his evil ways behind and became a loyal henchman and a member of the Circle of Eight.  

Drawmij

Drawmij's Instant Summons   Like Bigby, he was a member of the Circle of Eight.  

Evard

Evard's Black Tentacles   Also known as Evard the Black, Evard was an evil archmage and enemy of Mordenkainen. He was also known to have created Evard’s All-Seeing Worm and Evard’s Menacing Tentacles, but it’s Evard’s Black Tentacles he is most famous for.  
Evard's All-Seeing Worm
The writhing worm you hurl at your ally burrows into his or her flesh to create a tiny opening through which you can see.  
Evard’s Menacing Tentacles
Two black tentacles sprout from your shoulder blades and arch over your shoulders. The tentacles have 10-foot reach and are animate.
 

Leomund

Leomund's Secret Chest, Leomund's Tiny Hut   Another member of the Circle of Eight. Other spells attributed to Leomund include Leomund’s Hidden Lodge and Leomund’s Secure Shelter.  
Leomund’s Hidden Lodge
You picture in your mind the desired appearance of a camouflaged lodge even as you complete the motions and words of the spell. When you finish, you open your eyes and note a new feature in the landscape roughly the size of a house.  
Leomund’s Secure Shelter
Leomund's secure shelter was a conjuration spell that created a sturdy cottage.
 

Melf

Melf's Acid Arrow, Melf's Minute Meteors   Also known as Prince Brightflame, Melf was an elven Wizard. Like Bigby and Drawmij, he was a member of Circle of Eight.  

Mordenkainen

Mordenkainen's Faithful Hound, Mordenkainen's Magnificent Mansion, Mordenkainen's Private Sanctum, Mordenkainen's Sword   He has become a prolific archmage who has left his home world of Oerth (Greyhawk) and travelled far across the multiverse.  

Nystul

Nystul's Magic Aura   Another member of the Circle of Eight, Nystul developed a significant number of spells such as Nystul’s Magic Aura and Nystul’s Undetectable Aura. He was extremely tall (6 ft 7) and was probably the most famous native of the Duchy of Tenh.  
Nystul’s Undetectable Aura
When cast, the spell allowed a caster to hide an item's magical aura, allowing the nature of the item to be undetectable to spells. If identify was used on the item, it would reveal that the aura was hidden or false, and the item's properties became known.
 

Otiluke

Otiluke's Freezing Sphere, Otiluke's Resilient Sphere   Another archmage from Greyhawk, and another member of the Circle of Eight. He was rather puny-looking and lacked common sense.  

Otto

Otto's Irresistible Dance   Another member of the Circle of Eight! A short, rotund man with curly hair, known to be a lover of fine foods and music.  

Rary

Rary's Telepathic Bond   Rary betrayed the Circle of Eight and was responsible for the deaths of Otiluke and Tenser. Consequently, he was also known as ‘Rary the Traitor’.  

Tasha

Tasha's Hideous Laughter, Tasha's Caustic Brew, Tasha's Mind Whip, Tasha's Otherworldly Guise   Tasha is also an alias for Iggwilv, a famous villains in lore who created the Demononicon.  

Tenser

Tenser's Floating Disk, Tenser's Transformation   There have been many other Tenser spells, but it is Tenser’s floating disk that he is most famous for.  

Abi-Dalzim

Abi-Dalzim's Horrid Wilting   Little is known on him.  

Aganazzar

Aganazzar's Scorcher   Aganazzar founded Neverwinter’s School of Wizardry and died in a battle with the Red Wizards of Thay, on Toril.  

Maximilian

Maximilian's Earthen Grasp   no one seems to know who Maximilian was.  

Snilloc

Snilloc's Snowball Swarm   LIttle is known on him.  

Jim

Jim's Glowing Coin, Jim's Magic Missile   James Winifred ‘Jim’ Darkmagic III is a supremely arrogant and shamelessly self-promoting Human Wizard and the co-founder of Acquisitions Incorporated.  

Ashardalon

Ashardalon's Stride   Ashardalon had built a lair in the Astral Plane and was feeding off the souls of the unborn.  

Fizban

Fizban's Platinum Shield   In Krynn, Fizban the Fabulous was a slightly doddery old Wizard who turned out to be an avatar of the god Paladine (essentially Bahamut, the god of good dragons). His seven pet canaries were all Gold dragons in disguise.  

Nathair

Nathair's Mischief   Nathair was a fairie Dragon, possibly the god of the faerie dragons, and a member of the Seelie Court. He loved pranks – hence this spell!  

Raulothim

Raulothim's Psychic Lance   An Emerald Greatwyrm from the Moonshae Isles with a long history. Known as ‘the Silent Shadow’, he was a powerful spellcaster and a master of psionics.  

Rime

Rime's Binding Ice   Assumed this is an ancient White Dragon.  

Karsus

Karsus' Folly (destroyed the Netheril people but made him a god, it also destroyed a version of Mystra. This spell might have something to do with how the Netherese came to Dierde...)  

Fistandia

Created a Mordenkainen's Magnificent Mansion attached to a book.  

Jeriah Chronos

The most studied of Chronomancy.  

Halaster Blackcloak

A mad wizard who once had a tower where Wideberth lies and in fact its base is what makes the The Yawning Portal's entrance to the Underdark. Stories still speak of his presence down there...