Why John Cena's Agency Tried to Get Him to Reject 'Barbie' Cameo | THR News Video

John Cena says his agency tried to talk him out of doing 'Barbie.'

The actor portrayed a merman in a single scene of the Oscar-nominated film.

Since the role was a minor one, Cena told Howard Stern his agency was worried that it would take other chances away from him for lead roles.