Jasper Sitwell (performed by Maximiliano Hernández) was an agent of S.H.I.E.L.D. who was secretly working for HYDRA.
- Jasper first appears in Jaden meets Thor.
- Jasper will return in Jaden joins The Avengers.
- Jasper first apperas in Jeffrey & Friends meet Thor.
- Jasper will return in Jeffrey & Friends' Storm Adventures of The Avengers.
- Jasper Sitwell becomes Jeffrey and Jaden's enemy in Jeffrey, Jaden & Friends' Storm Adventures of Captain America: The Winter Soldier.
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