| A | B |
|---|
| The protagonist who grows up throughout the book | Peak |
| The climber(s) who reached the summit with Sun-Jo | Yogi and Yash |
| A Buddhist monk who is cagey | Zopa |
| The second youngest boy currently climbing Everest | Sun-Jo |
| Peak's dad and one of the greatest world climbers | Josh |
| The reporter with garish clothes and a shrill voice | Holly Angelo |
| The Chinese soldier who tracks every Tibetan move on Everest | Captain Shek |
| Peak's step-father who writes him a letter and cares about him | Rolf |
| The famous actor who was attempting to climb Everest | William Blade |
| A porter who saved his own life by killing his yak and taking refuge in it | Gulu |
| The videographer who has passed his camera on to Peak | J.R. |
| The group of people who help carry gear up Everest | Terri Marcello |
| Peak's literary mentor | Vincent |
| Peak's siblings | Patrice and Paula |
