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Jetstream is one of the two tritagonists and a superheroine in the film Sky High.


Jetstream is a world famous superhero who has the power of supersonic flight and is a master of unarmed combat. Her alter ego is Josie Stronghold, a realtor, the wife of Steven Stronghold, and the mother of a teenage boy named Will. She takes her ‘cover job’, as a real estate agent, the "family business" very seriously.

She is also a devoted wife and mother. At the beginning of the film, she reminisced about when Will was a little kid, to which Will replied, embarrassed, "Mom!" She also appeared to be worried about Will too much, until Steve told her to stop treating him like a baby.


In the film, Josie is first seen having breakfast with Will and Layla Williams. She and Steve are then called on a mission to defeat a giant robot terrorizing the city.


  • Josie: "You sure he'll be ok? What if he forgets his lunch?"</li></li>
  • Steve: "Josie, Josie, you've got to stop babying the boy!"</li></li>
  • Josie: "You're right, you're right…"</li>


    v - e - d
    Sky High Logo
    Sky HighSky High 2
    Will StrongholdLayla WilliamsThe CommanderJetstreamWarren PeaceEthanMagentaZachRoyal Pain/Gwen GraysonLashSpeedPenny LentStitchesAll American BoyCoach BoomerRon WilsonPrincipal PowersFreeze Girl • Professor Medulla • Nurse Spex • Jennie Elast • Mr. and Mrs. Timmerman
    Sky High School • The Stronghold's House
    The PacifierThe Robot
    </li> </li></li>