Cast[]
- Hazel Grace Lancaster as Gabi
- Augustus Waters as Bob
- Isaac as Big Bird
- Frannie Lancaster as Gina
- Michael Lancaster as Elmo
- Patrick as Big Bird
- Lidewik Vligenthart as Susan
- Peter van Houten as Bert
- Mrs. Waters as Maria
- Mr. Waters as Ernie
- Dr. Maria as Zoe
- Monica as Leela
- John Green as Cookie Monster (cameo)