No photoActingMarshall GriffinKnown forThe Diplomat2023DRAMAShameless2004COMEDYBeing Human2009SCI-FIHeads of State2025ACTIONFull filmographyThe Diplomat2023DRAMAShameless2004COMEDYBeing Human2009SCI-FIHeads of State2025ACTIONHoudini & Doyle2016DRAMA