TV series about amnesia

A missing FBI agent reappears six years after being declared dead.

Heidi Bergman is a caseworker at Homecoming, a Geist Group facility helping soldiers transition to civilian life. Years later she has started a new life, living with her mother and working as a waitress, when a Department of Defense auditor questions why she left the Homecoming facility. Heidi quickly realizes that there's a whole other story behind the story she's been telling herself.

A lawyer suffering from amnesia due to an accident tries to piece together the events leading to it, with the help of his wife.

Flight attendant Cassandra Bowden wakes in her hotel room hungover from the night before in Dubai with a dead body lying next to her. Afraid to call the police, she continues her morning as if nothing happened. In New York, she is met by FBI agents who question her about her recent layover in Dubai. Still unable to piece the night together, she begins to wonder if she could be the killer.

A young mother kills in a fit of unexplainable rage a seemingly stranger. An inquisitive detective obsesses over the case, attempting to get to the bottom of the true motive behind the act.

After waking in a park with total amnesia — and surrounded by dead bodies, all wearing latex gloves — a young woman must fight to uncover her past, and resume her position at the head of Britain’s most secret (supernatural) service before the traitors who stole her memory can finish what they started.

Theorizing that one could time travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished... He woke to find himself trapped in the past, facing mirror images that were not his own and driven by an unknown force to change history for the better. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. And so Dr. Beckett finds himself leaping from life to life, striving to put right what once went wrong and hoping each time that his next leap will be the leap home.

The “Seven Deadly Sins”—a group of evil knights who conspired to overthrow the kingdom of Britannia—were said to have been eradicated by the Holy Knights, although some claim that they still live. Ten years later, the Holy Knights have staged a Coup d'état and assassinated the king, becoming the new, tyrannical rulers of the kingdom. Elizabeth, the king's only daughter, sets out on a journey to find the “Seven Deadly Sins,” and to enlist their help in taking back the kingdom.

The “Abyss” is the last unexplored region, an enormous and treacherous cave system filled with ancient relics and strange creatures. Only the bravest of adventurers can traverse its depths, earning them the nickname, “Cave Raiders.” Within the depths of the Abyss, a girl named Riko stumbles upon a robot who looks like a young boy. Tantalized by the Abyss, Riko and her new friend descend into uncharted territory to unlock its mysteries, but what lies in wait for them in the darkness?

John Doe is an American science fiction drama television series that aired on Fox during the 2002–2003 TV season.

After finding his mom killed, Satoru's time-traveling ability takes him back 18 years for a chance to prevent her death and those of three classmates.

Yuichi hasn’t seen his cousin Nayuki in years. Now that he’s back, all knowledge of ever visiting has vanished. He tries to adjust to the vaguely familiar surroundings, but the gaps in his memory haunt him as time grows short. The pieces of the puzzle have appeared – an eerily silent beauty with blazing tresses, the mysterious girl with the winged backpack, and the sword-wielding demon slayer – but it’s up to Yuichi to discover how they fit together.

There is a place after death that’s neither heaven nor hell. A bar that serves you one chance to win. You cannot leave until the game is over, and when it is, your life may be too. From Studio Madhouse (Death Note, Black Lagoon) comes a thrilling new series where the stakes are high and the rules are simple: your life is on the line.

A psychological thriller about Mie, a young woman with amnesia who is locked up in a secure psychiatric hospital. Mie is visited by Detective Inspector Wolkers who claims she was the last person seen with the vanished Thomas Spectre. As a witness and prime suspect, she appears to be the sole key to this mysterious disappearance. In order to solve the puzzle and find Thomas, Mie has to reconstruct her lost memories and find her way back through the dark labyrinth of her recent past.

Based on the true story of Grace Marks, a housemaid and immigrant from Ireland who was imprisoned in 1843, perhaps wrongly, for the murder of her employer Thomas Kinnear. Grace claims to have no memory of the murder yet the facts are irrefutable. A decade after, Dr. Simon Jordan tries to help Grace recall her past.

Iljimae is a 2008 South Korean historical action television drama series, starring Lee Joon-gi in the title role of Iljimae, Han Hyo-joo, Lee Young-ah and Park Si-hoo. It is loosely based on a comic strip Iljimae, published between 1975 and 1977, by Ko Woo-yung that was based on a Chinese folklore from the Ming dynasty about a masked Robin Hood-esque character during the Joseon era. It was directed by Lee Yong-suk and produced by Chorokbaem Media. It aired on Seoul Broadcasting System from May 21 to July 24, 2008 on Wednesdays and Thursdays at 21:55 for 20 episodes.

After a tragic accident, an amnesiac teen tries to rebuild her life at a memory disorders center but becomes suspicious of her unconventional treatment.

Three teens join forces to find a way home after waking up in a strange realm filled with magic portals, perplexing puzzles and vicious beasts.

A dedicated forensic psychiatrist, Emma Robertson, is assigned to assess the sanity of Connie Mortensen, a “yummy mummy” accused of a despicable crime.

4400 centers on the return of 4400 people who, previously presumed dead or reported missing, reappear on Earth. Though they have not aged physically, some of them seem to have deeper alterations ranging from superhuman strength to an unexplained healing touch. A government agency is formed to track the 4400 people after one of them commits a murder.

The Diclonius, a mutated homo sapien that is said to be selected by God and will eventually become the destruction of mankind, possesses two horns in their heads, and has a "sixth sense" which gives it telekinetic abilities. Due to this dangerous power, they have been captured and isolated in laboratories by the government. Lucy, a young and psychotic Diclonius, manages to break free of her confines and brutally murder most of the guards in the laboratory, only to get shot in the head as she makes her escape. She survives and manages to drift along to a beach, where two teenagers named Kouta and Yuka discovers her. Having lost her memories, she was named after the only thing that she can now say, "Nyuu," and the two allow her to stay at Kouta's home. However, it appears that the evil "Lucy" is not dead just yet...