who are the triplets in this is us
The series follows the lives of siblings Kevin, Kate, and Randall (known as the "Big Three"), and their parents Jack and Rebecca Pearson. It takes place in the present and, via flashbacks, at various times in the past. Kevin and Kate are the two surviving members of a triplet pregnancy, born six weeks premature on Jack's 36th birthday in 1980; their biological brother is stillborn. Believing they were meant to have three children, Jack and Rebecca, who are white, decide to adopt Randall, a black child born the same day and brought to the same hospital after his biological father abandoned him at a fire station. Jack dies when his children are 17.