ag her ▁ ▁Play ed ▁by : ▁Elli ott ▁T itt ensor ▁( Series ▁ 1 – 9 , ▁ 1 1 ) Lu ke ▁T itt ensor ▁( Series ▁ 1 ) ▁ ▁Carl ▁Gall ag her ▁( born ▁ 1 8 ▁January ▁ 1 9 9 0 ) ▁is ▁a ▁fict ional ▁character ▁from ▁the ▁Channel ▁ 4 ▁drama ▁Sh am eless , ▁he ▁is ▁the ▁fourth ▁oldest ▁Gall ag her ▁sib ling . ▁The ▁son ▁of ▁Frank ▁( David ▁Th rel fall ) ▁and ▁Mon ica ▁Gall ag her ▁( An n abel le ▁A ps ion ), ▁his ▁brothers ▁are ▁Lip ▁( J ody ▁L ath am ) ▁and ▁Li am ▁( John ny ▁Ben nett ); ▁his ▁sister s ▁are ▁F iona ▁( An ne - Marie ▁D uff ), ▁Deb bie ▁( R eb e cca ▁Ryan ) ▁and ▁St ella ▁( N ik ita ▁Brown lee ); ▁his ▁half - bro thers ▁are ▁Ian ▁( G er ard ▁K ear ns ) ▁and ▁N ig el ; ▁and ▁his ▁half - s ister ▁is ▁Del ia . ▁Initial ly ▁he ▁played ▁only ▁a ▁minor ▁role ▁in ▁the ▁show , ▁but ▁since ▁series ▁two ▁has ▁been ▁featured ▁just ▁as ▁much ▁as ▁the ▁other ▁Gall ag her ▁children . ▁Carl ▁appeared ▁in ▁ 1 1 7 ▁episodes ▁in ▁total . ▁ ▁In ▁the ▁first ▁series , ▁Carl ▁was ▁joint ly ▁played ▁by ▁T itt ensor ' s ▁tw in ▁brother ▁Luke ▁T itt ensor , ▁but ▁since ▁the