Ok...here it is.. hope this is clear..
IF OBJECT_ID('TempDB..#mytable','U') IS NOT NULL
DROP TABLE #mytable
CREATE TABLE #mytable
( MyColumnName varchar(50))
INSERT INTO #mytable(MyColumnName)
SELECT 'LN1, FN1' UNION ALL
SELECT 'Lastname2, Firstname2' UNION ALL
SELECT 'Lastnm3,...