Williams has directed several modern-day television programs including work as a regular director on the ABC drama series Lost,[1] where he was also a co-executive producer.
In 1995, Williams wrote and directed the film Soul Survivor, which starred his brother Peter in the main role.
In 2004, he began directing on the ABC drama series Lost, and later also rose to the position of co-executive producer.
[2] Williams is married to Jocelyn Snowdon and the couple has a daughter together, also in addition to Stephen's twin sons, Gabriel and Justis.
His brother is actor Peter Williams, best known for playing the Goa'uld Apophis on Stargate SG-1.