Michael's brother, Casey, is a chill and laid-back 21-year old sibling who seems to be brighter than his brother. He makes his first appearance in the fourth season, after Donna's split with Eric. What actor portrays him?

Casey Kelso was portrayed by Luke Wilson. He is, to be sure, not quite as stupid as his brother, but quite as reckless and casual. It's clear that he still has a profound affection towards his Trans Am.... and Donna.

Asked by Vasilii Kulev · Last updated 5 years ago · 2.6K views · SOURCE