In a video made for the National Resources Defenses Council (NRDC), the Hollywood stars accuse Scott Pruitt of wanton profligacy while in office.
This campaign is the latest in a series of co-ordinated assaults on Pruitt by environmental activists outraged at his success in rolling back Barack Obama’s green agenda and implementing President Trump’s campaign promises on energy and environment issues.
Slattery and Stevens, like many Hollywood actors, are seasoned environmental activists.
Slattery has campaigned for groups including EarthJustice.
Stevens, still probably best known as an Eighties teen actor in films like Short Circuit and Short Circuit 2, directed the 2016 environmental documentary Before the Flood starring Oscar-winning actor and enviro activist Leonardo DiCaprio.