Ryan McGee of Zap2it described "White Rabbit" as "a worthy successor to 'Walkabout,' and one of the stronger Jack-centric eps the show ever produced." Lost Episode Guide for Others: An Unofficial Anthology by Robert Dougherty says the episode is a must-see; it is "our first in depth glimpse at Jack's character".
The evaluation of "White Rabbit" as an essential episode in understanding Jack's character is reinforced by Ryan McGee's review, which compares it favorably to another episode ("Walkabout") and highlights its significance in the series.