How do I alter this stored procedure to show all people in the stored procedure, even if they don't have a role?

ALTER PROCEDURE [dbo].[personSelectAll] -- Add the parameters for the stored procedure here AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON;

-- Insert statements for procedure here SELECT Person.personID, Person.firstName, Person.lastName, Person.email, Person.phone, ValidRole.roleDesc FROM Person INNER JOIN PersonRole ON Person.personID =PersonRole.personID INNER JOIN ValidRole ON PersonRole.roleID = ValidRole.roleID order by lastname, firstname END