Complex sentence: Tobias Menzies was the second actor cast on August 8 in the dual roles of Frank and Jonathan Randall, and on September 4 Graham McTavish and Gary Lewis were added to the cast.
Split into simpler sentences: Tobias Menzies was the second actor cast on August 8 in the dual roles of Frank and Jonathan Randall. On September 4,2013, Graham McTavish and Gary Lewis were added to the cast.