Marty McFly

Lee

Paul

Jennifer Parker

Stanford S. Strickland

Doc Brown

Needles

Needles' friends

Professor Marcus Irving

General Groves (in flashback only)

Colonel Lomax (in flashback only)

Mr. Irving (Marcus' father, mentioned only, deceased)

Mrs. Irving (Marcus' mother, mentioned only, deceased)

Professor Irving's sisters (mentioned only)

Dave McFly (mentioned only)

Linda McFly (mentioned only)

George McFly

Lorraine McFly (mentioned only)

Biff Tannen (mentioned only)

Marty androids

Didja Notice?

Professor Irving is introduced in this issue. He was glimpsed in the background of a couple scenes in "Who is Marty McFly?" Part 1.

Professor Irving builds a time machine out of a Yugo. The Yugo was a subcompact car manufactured by the Yugoslavian company Zastava Automobiles and marketed in the U.S. from 1985-1992.

The license plate of Professor Irving's Yugo time machine appears to be TMI 111.

On page 9, Professor Irving tells Marty that General Groves and Colonel Lomax approached him in 1962 with a proposition to develop time travel technology as a hedge against doomsday during the Cold War after the events of the Cuban Missile Crisis. These same men from the Pentagon also approached Doc Brown for the same thing in "The Doc Who Never Was". The Cuban Missile Crisis occurred over October 16–28, 1962, when the Soviet Union attempted to place nuclear missiles in Cuba, threatening U.S. security.

Professor Irving tells Marty that his budget from the military was reallocated the past January (1986), after two decades without a clear-cut success, to other projects like the Strategic Defense Initiative. This refers to President Ronald Reagan's Strategic Defense Initiative created in 1983, a plan to defend the United States from ballistic missile attack by both ground and space-based systems; it never really came to fruition in the manner he had envisioned.

Professor Irving's story on page 11 references events seen in "Continuum Conundrum" Part 6 and "Who is Marty McFly?" Part 1.

On page 19, Doc remarks that Marty is the Thomas A. Watson to his Alexander Graham Bell. Watson (1854-1934) was an assistant to Bell, who invented the telephone in 1876.

On page 20, Doc mentions the version of himself who existed in Biff's 1985, then tells Marty, "Well, never mind what happened to him." He is referring to the Doc Brown who was committed to a mental institution in the evil 1985 created by Biff in Back to the Future Part II. In "Clara's Story", Doc related how he visited himself in the institution before meeting up with Marty again in Back to the Future Part II and found his other self to have virtually no brain function, assuming he had been lobotomized. In "Biff to the Future" Part 6, we instead learn that Doc had learned of and used an ancient Eastern religious practice to shut off his higher brain functions in order to prevent BiffCo from getting the secret of time travel.

At the end of this issue, Marty is grabbed by three individuals who look exactly like him in different clothes. These are revealed in "Who is Marty McFly?" Part 3 to be androids built by Professor Irving.