Marc Croft starred in 'Kerry Katona: What's The Problem?' with his then-wife, who had just been diagnosed with Bipolar disorder. Marc Croft starred in 'Kerry Katona: What's The Problem?' with his then-wife, who had just been diagnosed with Bipolar disorder. Marc Croft starred in 'Kerry Katona: What's The Problem?' with his then-wife, who had just been diagnosed with Bipolar disorder. Marc Croft starred in 'Kerry Katona:... Marc Croft starred in 'Kerry Katona:... Marc Croft starred in 'Kerry Katona:...