Will Ferrell almost killed Zach Galifianakis Will Ferrell and Zach Galifianakis Fri-03-Aug-12 08:21 Share this By Jay-Jay FeeneyWILL FERRELL almost killed his THE CAMPAIGN co-star ZACH GALIFIANAKIS during filming.Zach has a severe nut allergy but for some reason Will thought it would be funny to put some walnuts in his breakfast.“His throat closed up, to the point where they were like, 'Someone call a doctor... no seriously, someone call a doctor!'"Will says, 'If paramedics had been five minutes later, he would have died.'" You May Also Like Will Ferrell talks to Sharyn & Guy Anchorman 2 - new trailer released! Will Ferrell & John C. Reilly are teaming up again! Become a fan of The Edge on Facebook and on Twitter .