Whether it's having the weight of the Hurricanes franchise on his young shoulders, or coming on to make his test debut for the All Blacks as a 21-year-old, the Taranaki lad seems to take everything that gets thrown at him with a typically understated fashion.
Chased by the Blues last year, he spurned the Auckland-based outfit to join the Hurricanes' wider training group, add some bulk to his frame and turn out for Taranaki in the ITM Cup as he waited to join the Hurricanes' full-time roster this season - the same team his father Kevin played for in the late 1990s.
The move was a wise one for Barrett who has led the Hurricanes with aplomb from pivot this year and registered his first international appearance last weekend when he replaced an injured Aaron Cruden at first-five as the All Blacks routed Ireland 60-0 in Hamilton.
As he took questions from the media this week about meeting the Crusaders in Christchurch on Saturday night and what he had made of his rapid rise in the national pecking order, there was a certain calm about Barrett's manner.
The same relaxed persona is evident on the field and he said despite giving the impression there is ice running through his veins, a few people did know what gets him wound up.