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"What? You've never seen a genius's wiener before?"
Cubert's first words[source]

Cubert J. Farnsworth is the clone of Professor Hubert J. Farnsworth, but he takes on the role of his son. The DNA used to clone him was scraped from a growth on the Professor's back in 2989 and this is the day that is celebrated in lieu of an actual birthday. His nose is flattened due to the Professor accidentally leaving him in one of his earlier cloning tubes for too long.

He is a chubby boy with ginger hair in a similar style to Fry's. He has chubby cheeks, and he usually wears a watch and a light blue t-shirt with a Helium atom on it. He wears dark blue shorts and red trainers.

He is the sole heir to Planet Express and Professor Farnsworth's fortune, as he is Professor Farnsworth's closest living relative. He spends most of his time within the Planet Express Building with the Planet Express Crew and during his first appearance, "A Clone of My Own", appeared to criticize everything. He seems highly intelligent, but in reality he is usually just pointing out the logical flaws in the behaviors and actions of others, as well as the ways in which his father's inventions defy the laws of science.

Cubert is best friends with his classmate Dwight, the son of Hermes and LaBarbara. In an attempt to prove they are better than their fathers, they go into business together. The result: the short-lived delivery company Awesome Express. At school they suffer the occasional bout of bullying at the hands of Brett Blob, the son of Horrible Gelatinous Blob.

Because he is Professor Farnsworth's clone, he is technically his identical-twin brothеr, but due to being much younger, Hubert treats him as a son and refers to him as such. According to Bender, Cubert is legally the same person as the Professor ("Overclockwise").

In "The Late Philip J. Fry", he was married to Leela after Fry vanished in the Forwards Time Machine. Only because Cubert reminded Leela of Fry.

Cubert J. Farnsworth using the device that makes anyone sound like Hubert J. Farnsworth.

Relationship with the Planet Express crew

Cubert usually is rude to them. Most of the crew seems to resent him, seeing him as a nuisance.

Relationship with Dr. Zoidberg

At first, Cubert hated Dr. Zoidberg, as seen in "A Clockwork Origin". But as they spend more time together, Cubert seems to be more nice to him, but once the rest of the Planet Express Crew comes back, Dr. Zoidberg states that he is sick of him.

Relationship with Professor Farnsworth

At first Cubert was harsh to him and says he wants to be someone useful. Until he has a dream that makes him want to be just like him.

Family Tree

Mr. Gleisner──┬──Mrs. Gleisner Enos Philip J. Fry I──┬──Mildred Fry
              │                                                           │
           Mrs. Fry───────────┬─────────────────────────────Yancy Fry, Sr.
                            ┌─────┴─────────────────────────────────┐                   David  Farnsworth┬(?)
                            │                                       │                                        │
 Turanga Leela-Philip J. Fry I             Yancy Fry, Jr.──┬──Unknown (Many generations)                                                                      │                           │
                                                                        Philip J. Fry II─┬──Njörd(?) │
                                                                                             │               │
                                                                                      (Many generations)     │
                                                                                             │               │
                                                                                             │               │
                                                                                    Grandma Farnsworth   │
                                                                                            (possibly)       │
                                                                                                  │          │
                                                    Velma Farnsworth─────────┬───────────────Ned Farnsworth
              Ogden Wernstrom────┬───Mom──┬──Hubert J. FarnsworthClone-O-Mat   Floyd Farnsworth
                                     │            │                          │               
                                ┌────┴───┐   Igner            Cubert J. Farnsworth
                                │        │         
                            Walt Larry


  • Some fans speculate that Cubert is similar to Bart Simpson and also Martin Prince, characters from The Simpsons, another Matt Groening cartoon.
    • An interesting fact is that in the Latin Spanish dubbing, in seasons 2 to 4, he was dubbed by the dubbing actress Claudia Motta, who is the same voice actress who voiced Bart Simpson in seasons 9 to 15 of The Simpsons.
    • Additionally in that dubbing in seasons 1-4 the voice of Professor Farnsworth was provided by the dubbing actor Humberto Vélez, who voiced Homer Simpson in seasons 1-15 of The Simpsons.
  • Cubert's name comes from an arcade game called Q*Bert.
  • Cubert tends to appear and disappear at will. Often being absent from whole cast scenes even ones that include other children.
  • Cubert bares a resemblance to Ricky Sprocket from Ricky Sprocket: Showbiz Boy.