High School Musical: The Musical: The Series: Cast, Characters & General Information

Title Card - High School Musical The Musical The Series
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A show/ character guide for Disney+’s High School Musical: The Musical: The Series featuring who plays who, character descriptions, storylines, and general information.


Information is updated as new episodes are released and watched, and images are changed as better ones are captured.

 

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1General Information About High School Musical: The Musical: The Series

High School Musical: The Musical: The Series Directory

Title Card - High School Musical The Musical The Series

High School Musical: The Musical: The Series: Season 1 Review

“High School Musical: The Musical: The Series” is a showcase of Disney's up and coming talent beyond what we've previously seen.

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Notable Locations

East High

The school everyone goes to which hosted the High School Musical movie and whose mascot is actually a leopard and not a wildcat.

Utah

The state the show takes place in.

2Olivia Rodrigo Plays Nini

Nini (Olivia Rodrigo)
Nini (Olivia Rodrigo)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

While she can be seen as reserved, if not quiet, Nini has long dreamed to be at the front of center stage and take on the lead role in a musical. Which, with Ms. Jenn putting on a production of High School Musical, and Nini having the support of new boyfriend EJ, she thinks this might be the start of something new.

Additional Information About Nini

  • Is playing Gabriella in High School Musical
  • 1.5: Kourtney makes it appear, since middle school, Nini has often seen herself through her boyfriends eyes and has wrapped her identity in them.
  • 1.5: Is 16 years old.
  • 1.8: Her real name is Nina but since Ricky couldn’t pronounce that, he called her Nini and is stuck.

 

3Joshua Bassett Plays Ricky

Ricky (Joshua Bassett)
Ricky (Joshua Bassett)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

Nini’s ex who, when she told him, in a grandiose style, she loved him, he decided to have them take a break, which she took as a break-up. Now, with Nini moving on, he decides to go against his dislike for musicals to try to win her back.

Additional Information About Ricky

  • His parents are having marital problems and have been for who knows how long. Thus explaining why Nini speaking of love may have freaked Ricky out.
  • Is playing Troy in High School Musical.
  • 1.8: His real name is Richard but Nini gave him the nickname Ricky.

 

4Kate Reinders Plays Miss Jenn

Miss Jenn (Kate Reinders)
Miss Jenn (Kate Reinders)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

A former Broadway talent who is a huge High School Musical fan and with her needing a day job, she decides to become a drama teacher. One which, for her first production, she plans to stage High School Musical at the place it was recorded, for the first time!

Additional Information About Miss Jenn

  • Was an extra, not featured dancer, on the original High School Musical movie – she tried to make her resume more attractive.
  • 1.4: Her parents divorced when she was 14.

 

5Mark St. Cyr Plays Mr. Benjamin Mazzara

Mr. Mazzara (Mark St. Cyr)
Mr. Mazzara (Mark St. Cyr)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

The S.T.E.M teacher who isn’t too fond of the arts. At least in terms of pushing kids towards them as a career instead of a hobby.

Additional Information About Mr. Mazzara

 

6Frankie A. Rodriguez Plays Carlos

Carlos (Frankie A. Rodriguez)
Carlos (Frankie A. Rodriguez)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

Miss Jenn’s right hand and a huge gossip who keeps her in the know of who is who and other people’s business.

Additional Information About Carlos

  • 1.5: Has mutual feelings for Seb and made the first move.

 

7Sofia Wylie Plays Gina

Gina (Sofia Wylie) looking at a homecoming poster.
Gina (Sofia Wylie)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

A transfer student who is used to being the lead due to her singing and dancing talent. Which makes her being an understudy for the first time not only a shock and insulting but a bit devastating as well.

Additional Information About Gina

  • In Nini’s understudy for Gabriella.
  • 1.5: Has gone to 5 schools in 7 years.

 

8Matt Cornett Plays EJ

EJ (Matt Cornett)
EJ (Matt Cornett)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

On top of being Nini’s new boyfriend, he is a senior, the class president for his year, and captain of the water polo team.

Additional Information About EJ

  • Has been in theater for three years.
  • Is playing Chad in High School Musical.
  • 1.4: Has the unfortunate habit of doing bad things in order to support people he likes. For example, he poisoned a girl at camp so Nini could get the lead role.
  • 1.6: Has a 4.3 GPA

 

9Dara Renee Plays Kourtney

Kourtney (Dara Renee) giving you face.
Kourtney (Dara Renee)

Character Introduction

First Noted In: Season 1, Episode 1 “The Audition”

Nini’s friend who always has her back and is a staunch feminist.

Additional Information About Kourtney

  • 1.4: Handles costumes for the musical.

 

10Ashlyn (Julia Lester)

Ashlyn (Julia Lester) with her grandma glasses on.
Ashlyn (Julia Lester)

Character Introduction

First Noted In: Season 1, Episode 2 “The Read-Thru”

Ashlyn is EJ’s cousin who is a talented singer/ songwriter and doesn’t put up with EJ’s ego or insecurities.

Additional Information About Ashlyn

  • Has AP classes

11Seb (Joe Serafini)

Seb (Joe Serafini) noting he is a Black sheep in his family.
Seb (Joe Serafini)

Character Introduction

First Noted In: Season 1, Episode 2 “The Read-Thru”

The son of farmers, Seb has a huge love for musical theater and will be playing Sharpay in Miss Jenn’s High School Musical production.

Additional Information About Seb

12Big Red (Larry Saperstein)

Red (Larry Saperstein) looking perplexed.
Red (Larry Saperstein)

Character Introduction

First Noted In: Season 1, Episode 2 “The Read-Thru”

Ricky’s best friend who isn’t a strong reader but is the best friend a person can ask for.

Additional Information About Red

  • 1.4: Has sleep apnea
  • 1.10: Reveals himself to be a good tap dancer.
  • 1.10: Revealed that he is Big Red III

13Carol (Nicole Sullivan)

Carol (Nicole Sullivan) prepping a bed for Ricky.
Carol (Nicole Sullivan)

Character Introduction

First Noted In: Season 1, Episode 4 “Blocking”

One of Nini’s moms.

Additional Information About

14Lynne (Beth Lacke)

Lynne (Beth Lacke) talking to Ricky.
Lynne (Beth Lacke)

Character Introduction

First Noted In: Season 1, Episode 4 “Blocking”

Ricky’s mother who is divorcing his dad and relocating to Chicago.

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Additional Information About Lynne

15Mike (Alex Quijano)

Mike (Alex Quijano) looking disappointed.
Mike (Alex Quijano)

Character Introduction

First Noted In: Season 1, Episode 4 “Blocking”

Ricky’s custodial parent who was hoping to reconcile with his mother, but that didn’t come to pass.

Additional Information About Mike

16Principal Gutierrez (Valente Rodriguez)

Principal Gutierrez (Valente Rodriguez) awkwardly trying to have Miss Jenn vacate the premises.
Principal Gutierrez (Valente Rodriguez)

Character Introduction

First Noted In: Season 1, Episode 6 “What Team?”

The principal of East Side High School who doesn’t really get Miss Jenn but writes it off as her being an arts person so, naturally, he finds her weird.

Additional Information About Principal Gutierrez

17Terri (Napiera Groves)

Gina and Terri (Napiera Groves) as Gina cries about having to move.
Gina and Terri (Napiera Groves)

Character Introduction

First Noted In: Season 1, Episode 7 “Thanksgiving”

Gina’s mom who works for FEMA, hence why she and Gina move so often.

Additional Information About Terri

  •  Is a single parent.

18Malou aka Lola (Jeanne Sakata)

Malou (Jeanne Sakata) talking to Nini.
Malou (Jeanne Sakata)

Character Introduction

First Noted In: Season 1, Episode 7 “Thanksgiving”

Nini’s Chinese grandmother who Nini is close to.

Additional Information About Malou aka Lola

19Dana (Michelle Noh)

Dana (Michelle Noh) and Malou at Nini's performance of High School Musical.
Dana (Michelle Noh) and Malou

Character Introduction

First Noted In: Season 1 Episode 9 “Opening Night”

Nini’s other mom, and likely her biological one.

Additional Information About Dana

20Kalyani Patel (Deepti Gupta)

Kalyani Patel (Deepti Gupta) reviewing Nini's performance.
Kalyani Patel (Deepti Gupta)

Character Introduction

First Noted In: Season 1 Episode 9 “Opening Night”

The dean from the Youth Actors Conservatory.

Additional Information About Kalyani

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