The month-long charity event sees men raising money by allowing their moustache to grow throughout November.
© Twitter / @lewis_damian
Lewis has now uploaded a photograph of his attempt to take part on his Twitter page, explaining that he is raising money for a prostate cancer charity.
"Week 2 Movember for prostate cancer," he wrote. "Thought I was hairier than this."
Lewis added: "Get your tash out for a great cause..."
Lewis can currently be seen in Showtime's drama Homeland, which was recently renewed for a third season. The series airs in the UK on Channel 4.
Watch Parks and Recreation star Nick Offerman give men advice on how to succeed in Movember below:
