Catherine Zeta-Jones

The ‘Mask of Zorro’ star was diagnosed with bipolar II back in 2011 and was candid about the fact she sought help and spoke to a therapist about her diagnosis.

She said: "This is a disorder that affects millions of people and I am one of them. If my revelation of having bipolar II has encouraged one person to seek help, then it is worth it. There is no need to suffer silently and there is no shame in seeking help."