Yoyo (Sacha)

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Real Name


Current Alias


Other Aliases

"Catboy" (nickname)
"Connor" (nickname)


Les Pyjamasques

Base of Operations

Totem Base




Secret Identity




Culture Hero




Book Continuity


Animal Totems (specifically the Totem Cat)
Sorceline (briefly)
Papinuits (briefly)
Mitomites (briefly)
Les Mascrapules (Grigri, Zina and Ulbert) (sometimes)
Santa Claus
Bibou's sister
Magistère la Sorcière
Rude Horn
Unnamed Masked Leopard Kid


Roméo Mécano
Orticia (formerly)
Grigri, Zina and Ulbert (rivalry)


Playing acrobats
Advising people with morals
His totem animal
Having permanent nights (formerly)
Lying about his memory about the night of the black moon
Teasing Les Mascrapules


Roméo Mécano
Sorceline, her Mitomites and Papinuits

Debut appearance

"Les Pyjamasques et le Grogarou" (book series)
"Pilot Pitch" (television series)

Voice actor

Unknown (Pilot only)

Yoyo (real name: Sacha) is the main protagonist of the Pyjamasques book series. He is a member, one-third of the Pyjamasques. His vehicular method of travel is the Chat-Bolide.


Long before the events of the book series, Sacha met his friends Amaya and Greg in school, and he was originally an average kid.

In "La Légende des Pyjamasques," during the events where Sorceline used her powers to capture the animal totems, Yoyo, alongside Bibou and Gluglu, would receive magical pajamas and powers by one of the three animal totems.

During their first encounter with Sorceline, he and his friends would learn that according to their legend, they had to help rescue the rest of the kids' animal totems.

Eventually, he and the rest of the other Pyjamasques succeeded on freeing the animal totems to restore their legend, and trapped Sorceline and the rest of her Mitomites inside her magical sack from returning to do any harm to them.

Official description

Super agile! Ultra fast! He can hear even the slightest noise, even from far away. The intrepid Yoyo never goes back on the adventure - he jumps to the rescue!


As Sacha

Sacha takes enjoyment on being curious and observing towards things that may interest him during school. He can be easily scared at times; this was especially emphasized in "La Légende des Pyjamasques."

As Yoyo

As Yoyo, he is shown to be the most charismatic member of the Pyjamasques, such as in "Les Pyjamasques et l'opération zéro" and "Les Pyjamasques et le cadeau de Sorceline," in which he encourages the villains that being jealous of getting a zero nor having a gift is not a big deal at all. Alongside Bibou and Gluglu, he can be mischievous towards the villains they face such as taunting Les Mascrapules, and mocking Roméo Mécano.

It is emphasized in "Les Pyjamasques et le croque-chaussettes" that Yoyo will tell lies and forgets about the Night of the Black Moon.

He doesn't even speak in the English language and instead speaks in French.

Motive & Abilities


In most of his appearances, Yoyo and the rest of the Pyjamasques will often encounter and fight various nighttime villains that are mythology/folklore oriented.

In addition, they would help friends in need who are also mythology/folklore oriented.


  • Acrobatics: His primary ability; he is very agile and can perform back flips, cartwheels and high jumps at ease.
  • Yoyo Acrobasaut: Can jump really high.
  • Yoyo Rapido: Can run really fast at lightning speed.
  • Yoyo Ligotés: Can shoot blue magical stripes that wrap around his opponents and tie them up.
  • Hand-to-Hand Combat: He is efficient at using his wits and physical strength during a fight, such as catching Sablotin's metal moons at the fastest reaction time, or throwing one of his books to block Magistère la sorcière's visibility vision.
  • Head Balancing: Yoyo, along with Bibou and Gluglu, are able to balance with each other on their heads.

Physical appearance

As Sacha

Sacha has a blue teal shirt and darker tone pants, and his T-shirt is blue. He also has brown eyes in color and wears white sneakers with blue shoelaces, but was previously to have blue eyes and red sneakers before the events of "Les Pyjamasques et la momie d’Apophis, Tome I."

During the night, his pajamas consist of a traditional stripey white and blue shirt and pants. His feet also appears to be bare.

As Yoyo

As Yoyo, he has turquoise eyes instead of brown eyes. He wears a turquoise one-piece suit resembling a cat with ears, a tail, a white underbelly and many blue stripes. The costume leaves an opening for the lower portion of his face.

In his appearances before "Les Pyjamasques et l'opération zéro," Yoyo originally had white paws and feet, a different arrangement of stripes on his costume, and his white underbelly is smaller in size.

In his solo appearance in the pilot episode of the PJ Masks, he is identical to his early appearances in the book series. However, his appearance is been given slight undertones related to superheroes such as having completely blue cat ear flaps to match his ears instead of looking pink, and has blue paws and feet instead of white.

In one alternate artwork of Yoyo, he is shown with an amulet symbol similar to his television counterpart, Catboy.

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