Jada Shields (Charmed 2018)
The Neural Scrambler (Lab Rats) can erase someone memory for as long as they want.
Calvin Dion Avericci (Archie's Weird Mysteries) erasing the existence of any teens he turns into mannequins from the memories of the rest of the world.
Like Joshua who used to have this, Daphne (No Ordinary Family) hasn't fully mastered it.
Derek Lakes (Shadow Falls) needs to touch someone to erase their memory.
Dracula (Hotel Transylvania) can erase people's memories using his hypnosis.
Hermione Granger (Harry Potter) wipes her parent's memories with the spell Obliviate.
Magnus Bane (Shadowhunter Chronicles) is skilled at erasing and weaving memories.
Experiment 303 "Amnesio" (Lilo & Stitch) designed to wipe the memories of anyone he zaps in the eyes with the rays from his own.
Princess Ivy's (Sofia the First) magical memory-erasing dragonfly.
The Silence (Doctor Who) can erase the memories of other beings once they look away from them.
WuShan Geyser (Xiaolin Showdown) allow the user to erasure a foe's memory.
After being threatened by Brago, Zofis (Zatch Bell!) erased his partner Koko’s memories of the demon battle thus returning her to the kind and gentle person she was before.
Unsatisfied with the idea of simply burning Zatch’s book and sending him back to the demon world, Zeno (Zatch Bell!) decided to erase his brother's memories of the battle to become king.
Death 13 (JoJo's Bizarre Adventure Part III: Stardust Crusaders)
Seeing as his friend Nanashi was the only one who could replace him as leader of Luberia, Galian (Marchen Awakens Romance) erased his memories of him with a Darkness ÄRM before leaving the guild in his hands.
To become a complete monster, Chimera allowed the Ghost ÄRM, Hydra (Marchen Awakens Romance) to erase her remaining human memories and emotions so she could fuse with its demonic body.
The Haitian (Heroes) erasing Sandra Bennett's memory of Sylar,
Element 115/Divinium (Call of Duty: Black Ops series) was used by the original timeline Edward Richtofen to wipe the memories of the original timeline versions of "Tank" Dempsey, Nikolai Belinski and Takeo Masaki as part of Group 935's super soldier program.
Jace Beleren (Magic The Gathering)
Zatanna Zatara (DC Comics) is capable of using her magic to erase people’s memories. She used this on Batman which strain their friendship for a while.
Martian Manhunter (DC Comics)
Charles Xavier/Professor X (Marvel Comics)
Emma Frost (Marvel Comics)
The Stepford Cuckoos (Marvel Comics)
Kurome Ankokuboshi (Megadimension Neptunia VII).
After manipulating people to save time, the Grey Gentlemen (Momo) are forgotten the moment they leave, but their manipulations remain in their victims' subconsciousness, causing them to constantly save time by living a life of stress
Memory Stone (My Little Pony Equestria Girls)
King Sombra (My Little Pony: Friendship is Magic)
Hera/Juno (Percy Jackson and the Olympians/Heroes of Olympus) erased Percy Jackson and Jason Grace's memories.
Felicia Mitsuki (Puella Magi Madoka Magica Side Story: Magia Record)
Talia Hale (Teen Wolf) stole her brother Peter's memory of having a daughter to protect her from him.
Mavilla (Winx Club) can use the Clear Memory Spell to erase memories.
The Amnesulet (Yin Yang Yo!) allows the user to wipe the memories of their target.
Marik Ishtar (Yu-Gi-Oh!) using the Millennium Rod to erase the memory of the key from Pandora's memory, causing him unable to see or feel it despite still physically holding onto it.
Captain Man and Kid Danger (Henry Danger) used a special device that have special micro-electrons that can move even through Ray's desensitized body and wipe his memory.
When the Ninja 4 years are up the NinjaNomicon (Randy Cunningham: 9th Grade Ninja) uses The Ultimate Lesson to erase the memories of each Norrisville Ninja so they can pass their knowledge to the next one. It also erases other people’s memories to keep their identity safe. If the Ninja fails to mind wipe themselves then they end up going crazy as 1950s Ninja Mac Antfee did.