Kallis is the only Cricketer to score 8000+ runs and take 200+ wickets in both Tests and ODIs, yet when it comes to allrounders, he doesn't get any mention now a days.
His Stats -
Batting - 55.78 (TEST), 43.61(ODI)
Bowling - 31.71(TEST), 31.89(ODI)
Not to forget, very soon he will be reaching 100 catches milestone in both Tests and ODIs and he is only 30.