Family Guy

Technically Yes he is, or was until the Padre de Familia episode.

Mexico and The U.S. have similar laws.

If you're born in Mexico, you're a Mexican citizen regardless of the nationality of your parents, the same as the U.S.

Normally the child would have duel citizenship until they are 18 and then they would choose which one they wanted to be.

Peter never had that opportunity since Thelma says she never filed the naturalization papers for Peter when she returned to the U.S. proving he was born to U.S. citizens so he was a Mexican citizen until he was 42 when he took the U.S. Citizenship Test, granted he failed but made some arrangement with Carter but now he is an American citizen.

There was a 7th, an 8th, a 9th, a 10th, an 11th, a 12th & the 13th season of Family Guy will conclude in May 2015.

If it returns for a 14th season in September 2015 remains to be seen.

"He" ... exactly who is the "He" you speak of ?

Brian, Stewie & Mort go into the past in Road to Germany.

Peter & Brian go into the past in Meet the Quagmires.

Stewie, Brian & Bertram go into the past in The Big Bang Theory.

Stewie & Brian go into the past in Back to the Pilot.

Stewie travels into the past (& future) in The Untold Story.

The running gag of Stewie hating Lois has lessened over the seasons, but at the start of the series, he felt she stood in his way of world domination.

When Peter Griffin receives an invitation to a bachelor party at his neighbor Glenn Quagmire's house, his wife Lois pleads with him not to drink. Peter says he will not, but due to encouragement from Glenn, Peter gets drunk and suffers from a hangover the following morning.

He falls asleep on the kitchen table during breakfast. Lois is alarmed, but decides to forgive him. Peter falls asleep on the job while working as a safety inspector at the Happy-Go-Lucky Toy Factory.

He is fired for negligence when many highly dangerous "toys" (axes, jackknives, toasters, hazardous pills, and so on) are released. Not wanting to upset Lois again, he decides to keep it a secret. After Brian tells him to think of his family's well-being, Peter applies for welfare. Peter is shocked to find that his first welfare check is for $150,000 due to a misplaced decimal point.

Peter buys lavish gifts for his family such as Michelangelo's David, a moat, and a ski boat. Meg, Stewie, and Chris find out that Peter is unemployed, and he tries to keep them from telling Lois. Lois finds out when she receives the next welfare check in the mail. Peter decides that he will make it up to Lois by dropping all of his extra welfare money out of a blimp above Super Bowl XXXIII. This scene has a parody of the NFL on Fox theme music.

Peter and Brian are arrested by security guards and prosecuted for welfare fraud. Lois begs the judge to forgive her husband, but instead ends up in jail herself. Stewie uses a mind control device to get his parents and Brian released and get Peter his job back. The episode ends with things back to normal. Peter thinks about new ways to make money, and does not seem to have learned his lesson.

Simpson's characters who have died (excluding 'Tree House of Horror' episodes):

Died & stayed dead:

Mona Simpson

Maude Flanders (fall at racetrack)

Frank Grimes(electrocuted)

Bleeding Gums Murphy(heart problems)

Truckdriver Red Barclay(beef posioning)

Beatrice Simmons (heart attack)

Moe's Professor at Swigmore U (drowns himself)

Marge's Aunt Gladys(bowel obstruction)

Asa Phelps (third to last of the Flying Hellfish)

Amber Simpson (Homer's Vegas wife)

Mrs. Glick

Edna Krabapple (Unknown Cause of Death)

Chip Davis

Presumed Dead but Returned:

Dr Nick Riviera (died in movie)

Dr Marvin Monroe (Showed up in Diatribe of a Mad Housewife telling Marge he had been very sick)