Josh Alexander’s Loudmouth documents the winding road that is Al Sharpton’s life story as an iconic activist and spiritual leader.
| Actor | Role |
|---|---|
 Al SharptonSelf | Self |
 Andrew CuomoSelf - Governor, New York | Self - Governor, New York |
 Chuck SchumerSelf - Senator, New York | Self - Senator, New York |
| PPhil GriffinSelf - MSNBC President | Self - MSNBC President |
 Jesse JacksonSelf - Civil Rights Activist/Self - Baptist Minister (archive footage) | Self - Civil Rights Activist/Self - Baptist Minister (archive footage) |
 Barack ObamaSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |