Stephen also told us he had a meeting scheduled with SAG honchos, and based on these images of him picketing with his wife and fellow actress Cassandra Jean ... it would seem the union brass convinced him to publicly get on board with the strike.
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Some of Stephen's former cast members were also busy supporting the actors' strike on the left coast -- Katie Cassidy, Katrina Law, Willa Holland, Caity Lotz, Kirk Acevedo and Juliana Harkavy were all on the picket lines in the L.A. area. Even the show's executive producers came to show their support.
Stephen's shift is pretty dramatic ... last week he told us he wanted to see the union get back to the negotiating table, rather than continue the work stoppage.