James Van Der Beek joins 'Mercy'
'Dawson's' alum to play womanizing doctor"Dawson's Creek" alum James Van Der Beek has joined the cast of NBC's freshman medical drama "Mercy."
In a major recurring role that could become regular, he will play the hospital's new womanizing ICU chief who harbors a dark secret.
Van Der Beek also has recurred on the CW's "One Tree Hill."
"Mercy," which chronicles the lives of several nurses, has been picked up for a full season.