Update.
Option 1. - This annihilates all text in the column leaving nothing.
completed_tasks['Consultant'] = completed_tasks['Consultant'].str.rstrip('.#123')
Option 2. - returns unhashable series list.
output = completed_tasks[completed_tasks['Consultant']].str.contains(r'/\b[^\d\W]+\b/g')
neither option works as the column is a list.
Thanks
Sayth