MORE: Jake Carlisle the centre of drug scandal
The vision, aired on A Current Affair on Wednesday night, appeared to depict Carlisle ingesting illcit drugs - with the 24-year-old's trade from Essendon to St Kilda becoming official only hours earlier.
Carlisle released a statement via his manager on Thursday morning.
"I have made a very poor decision and let people down and for that I am embarrassed and truly sorry," Carlisle said in the statement.
"I would like to apologise to all St Kilda members, supporters and staff, AFL fans as well as my new teammates.
"I know that in a few weeks' time when I join St Kilda I'm going to be expected to be open and honest with my new club so want to start by confirming my error of judgment right now.
"St Kilda have shown great confidence in me and when I start with them I will need to earn their respect and win back the confidence of the playing group and broader Saints community.
"I will learn from my mistake and when I return to Australia I will commit to any Club or AFL requirements or educational programs."