Mrs. Byrne
Mrs. Byrne
Full Name

Mrs. Byrne




Finnegan High School`s stuff

Eye Color


Hair Color

Pink Platinum (Wig)



Finnegan High School

First Episode

"Mr. Young"

Portrayed By

Paula Shaw

Mrs. Byrne is Finnegan High's History Teacher, she is incredibly old, and she only teaches about the war of 1812, despite in some stories not even seeming aware there was a war in 1812. She still thinks she is young and beautiful.


Mrs. Byrne is commonly portrayed as a stereotypical old person, cranky, forgetful, prone to falling asleep, etc. She very often forgets things, even important things, such as in Mr. Elderman where she forgets she's at a funeral and steals one of the wreaths. She is also often portrayed as strict, and gullible. As well as being well behind with the times, and referring to obsolete technology as if it was still in use, or dead people as if they were alive. She also commonly uses 1930's slang. Its implied she is somewhat obsessed with the War of 1812, as when made Principal she renamed everything after it and even made it the schools mascot. (Mr. First Impression)


A massive recuring gag in the series is her age, she is commonly implied to be ancient, in Mr. Masterpiece she is revealed to have been working at Fingergan High since atleast the 1930's, yet still looks exactly the same. In Mr. DNA she had a flashback taking place in 1885, yet still looked exactly the same, placing her age at over 100 years. In Mr. Younger Man she claims to have seen Haley's comet six times already, which would put her between 375 and 456 years old. In Mr. Servant, she claims to have been Miss Constantinople, which puts her age up to at a minimum 558, in the same episode she mentions surving two Crusades in her bunker, which puts here to 763-757, asumming she meant the last two crusades. In Mr. Candy, she mentioned her love died in 1412. In Mr. Young, Tater notes this stating "there's certainly no maximum age" (to be a teacher)". In Mr. Tickleschmootz its mentioned she's been alive so long that she has developed immunity to every known illness. In the same episode when she was on a fake crusie and Derby yells "ice berg ahead", she replies with "Oh no. Not again" impling that she was aboard the Titanic when it sank in 1912. In Mr. First Impession she mentions to Adam he will get used to being 'stuck here forever', saying the first 1000 years are the toughest. which puts her at least 1000 years old. In Mr. Shakespeare she's revealed to believe in Ancient Egyptian Mythology, placing here age at over two thousand years. In the Christmas special, Mrs Byrne stated that when she was young, they gave gifts like gold, frankincense and myrrh meaning that she is about 2000. In Mr. Summer Vacation Part 2 Mrs. Byrne said "I never thought I would crawl back into the ocean" placing her age between 530 Million and 440 Million years old. In Mr. Spring Break, it is mentioned that she still remembers the time before the sun was even born, placing her age at over 10 billion years. 65 years after the events of Mr. College, an elderly Slab is shown at the college where Echo went to, and apparently, she shows up STILL alive at the college to confiscate his diploma saying in history that there was no war in 1812, when she was teaching that the whole time. Then sends Slab back to high school.


  • She can sleep with her eyes open.
  • She wears an adult diaper.

Love Interests

In the series Mrs Byrne seems to be attracted to any old character namely:

  1. Mr Elderman
  2. Santa Claus
  3. Apollo