Meet the cast of Ronald D Moore's Electric Dreams episode Real Life

Where have I seen him before? Sam Witwer played Aidan Waite in the TV series Being Human, and Davis Bloome in Smallville, as well as Crashdown in Battlestar Galactica.

Mario – Jacob Vargas

Who does he play? Mario is Sarah's partner in the police force. He'd follow her anywhere but is increasingly worried about her state of mind.

Where have I seen him before? Jacob Vargas played Domingo Colon in the Netflix series Luke Cage. He's also been in Hand of God and Sons of Anarchy.

Electric Dreams returns on Sunday 29th October at 9pm on Channel 4