Mallett, known for his role on the Wide Awake Club and its spin-off, Wacaday, helped make one of the first benches as part of the campaign.
“Around a fifth of adult men in England have a common mental health condition, such as anxiety or depression, yet despite mental health challenges, men are significantly less likely to seek psychological support,” a campaign spokesperson said.
“Just over a third, 36%, of NHS referrals for talking therapies are for men.”