Deadwood!
Atleast three cast members were the stars of Deadwood, anyone see any others?
"the day I tried to live, I learned that I was alive"
I spotted the three you did, having read your post before I saw it, and noticed no more. For those wondering, John Hawkes (Sol Star in Deadwood) played Mark in this; W. Earl Brown (Dan in Deadwood) played Rob, and Robin Weigert ("Calamity" Jane Canary in Deadwood) played Susan.
--If they move, kill 'em!