John Getz played Congressman Mark B. Sellner in the episodes Requiem and Tomorrow. He also had recurring roles on Daybreak starring Taye Diggs, Joan of Acradia, Maggie, Ned and Stacey, and starred in the movies Blood Simple, The Fly, Zodiac (with John Carroll Lynch, Philip Baker Hall, J. Patrick McCormack, Paul Schulze and Thomas Kopache) and The Social Network (written by Aaron Sorkin).