Author of the Condorcet Voting paradox

Traveled in the film Repeat Performance (1947), in four episodes of the TV series Voyage To The Bottom Of The Sea: "Time Lock", "A Time To Die", "The Death Clock" and "No Way Back" (1967), and in the TV movie "The Time Travelers" (1976)

Dino Boy (John David Carson) is captured by a group of Treemen to serve as a sacrifice, and Ugh must leap into action with the help of mammoths.

Wrote the Doctor Who TV series episodes "Planet of Giants" (1964), "Day of the Daleks" (1972), "Planet of Evil" (1975), and "The Masque of Mandagora" (1976)

Kenta (Mirai Moriyama) accidentally slips back in time from 2006 to 1944 shortly after seeing a sudden lightning flash while surfing.

Traveled in the films Planet of the Apes (1968), Beneath The Planet of the Apes (1970), and Escape From The Planet of the Apes (1971), the TV series Planet of the Apes (1974), The Fantastic Journey (1977), the TV series Darkwing Duck episode "Inherit The Wimp" (1992), and the Quantum Leap episode "A Leap For Lisa" (1992)

In an attempt to impress Lil Rob, Preston disappears Jay Jay (Kel Mitchell) to the fourth dimension. Now it's up to Lil Rob and the Grinders to get him back before someone confuses him for a germ.

A pteraducktyl brought to life by a scientist rampages through the city and Atom Ant (Howard Morris) has trouble getting it to stop.

A death scream is heard, yet all are accounted for. Eventually the Doctor (Tom Baker) finds a body stashed away but hours old, with rigor mortis already settling in.

Traveled in the TV series Tales of Tomorrow episode "All The Time In The World" (1951)

The Doctor, Amy (Karen Gillan) and Rory become trapped in a hotel of horrors unable to escape and unable to find the TARDIS.

The Histeria! gang present The Billy the Kid show, sing about the gold rush, meet the Earps, and learn about the Pony Express. Featuring Jeff Bennett as Pat Garrett.

Lil Rob's grandson appears from the future with the news that Stubford's grandson has used an evolved version of Goggles (Yuri Lowenthal)'s skateboard to take over Sprawl City.

Joel (Penn Badgley) is failing in Biology and his parents think he needs a tutor, who happens to be very attractive.

Somebody, sharing his knowledge, must have sent Dolly into the past deliberately. Risking the inevitable censure, Noah (Jeffrey Walker) once more travels to Haven to find the truth.

Hokum Hare and the Turtles hitch a ride on a time-traveling train to 2036, where they discover that Shredder has plans for the future New York City. Featuring Rob Paulsen as Raphael.

Sherman and Peabody (Bill Scott) help Scotland Yard track down and capture Mata Hari during World War I.

Dictor wants to use a Time Medallion and make everyone in the galaxy old. Featuring Casey Kasem as Robin.

Traveled in the TV series Swamp Thing episodes "Destiny" (1992) and "The Hurting" (1993)

Traveled in the film The Flight of Dragons (1982)

An alien young boy named Space Ace (Sumiko Shirakawa), given to homesick stargazing with the faces of his loved ones ghosted across the heavens. (time capsule)

Traveled in the TV series Early Edition episodes "Hot Time In The Old Town" (1998) and "Everybody Goes To RIck's" (2000)

Ivy and Zach travel back in time to catch Carmen (Rita Moreno) on a chase through history.

Author of the Paradox of Tolerance

Directed the film X-Men Days of Future Past (2015)

Traveled as Elmo in the TV movie Sesame Street Presents: The Street We Live On (2004)

Zack (Robert Clark), Cam and Spence turn the clock back in order to get a few extra minutes to work on their class assignment. However, they are sent back in time to 1912.

It is the 1960s and Pinky becomes a guru. Pinky (Rob Paulsen) unites a member of the most popular band of the day, a parody of the Beatles, to his true love causing the band to split up.

Traveled in the TV series Crime Traveller (1997)

In the 30th century, time travel becomes illegal after a time paradox crisis. The Time Protection Department (TPD) is established to watch for and stop time crimes. Narration by Yukitoshi Hori

Traveled in the TV series Good Luck Charlie episode Futuredrama (2013)

Pike is convinced that the Doctor (William Hartnell) knows the location of Avery's treasure while Polly and Ben try to convince the locals they were not responsible for Longfoot's murder.

When Tigra (Peter Newman) rapidly ages after falling under the deadly enchantment of a place known as the Cave of Time, the Thundercats must figure out how to stop it before it's too late.

Traveled in the films The Sticky Fingers of Time (1997) and Sound Of My Voice (2012) , as well as the TV series The Venture Bros. episodes "Escape To The House of Mummies Part II", "Twenty Years To Midnight" and "Victor. Echo. November." (2006), and episodes of the TV series "Terminator: The Sarah Connor Chronicles" (2008)

Traveled in the video game Carmen Sandiego's Great Chase Through Time (1988), Mario & Luigi: Partners In Time (2005), and Ratchet & Clank Future: A Crack in Time (2009)

A Mysteron spacecraft enters Earth atmosphere and is engaged by the Angel fighter craft. Starring Wayne Forester as Captain Scarlett.

Traveled in the TV series Tales From The Crypt episode "Whirlpool" (1994)

Superman and Batman are pulled into a space warp where they come across a strange planet inhabited by aliens known as Zoons. Featuring Michael Bell as Zan and Gleek

The Pastmaster (Keene Curtis) sends the Swat Kats to a dystopian future where The Metallikats and a robot army have taken over.

Hiding in an isolated cave, Jamie (Sam Heughan) leads a lonely life until Lallybroch is threatened by redcoats pursuing the elusive Jacobite traitor known as "Red Jamie."

Traveled in the film Du Barry Was A Lady (1943) and the TV series The Red Skelton Hour episode "George Appleby's Time Machine" (1960)

Bernard (David Peachey)'s Mum and Dad both have meetings to attend and have an argument about the meetings, not realizing that Bernard is there, so thinking they don't care anymore Bernard looks after himself for the afternoon.