According to this post, the following celebrities and rock stars ran cross country!
Haley Joel Osment
Robin Williams the actor and comedian ran a sub two minute 800m in the 1960’s mind you.
Bob Seger wrote the song “Against The Wind” which is a hat tip to his days running track and cross country.
Alice Cooper and a few of his bandmates ran 4:30 miles while in high school.
Joe Strummer of The Clash
Quite a list of actors, comedians and rock stars who all have cross country running in their roots!