The incumbent Democrat went head-to-head with Republican rival Mitt Romney at the polls, but it was Obama who claimed victory after winning an overwhelming majority.
However, Izzard only found out about Obama's win after a friend messaged him, as he was too nervous to tune into the news channels.
Speaking on Britain's The One Show on Wednesday (07Nov12), he says, "I was here (London), I came in two days ago. It was 4.20 (in the morning)... I just couldn't watch the Tv 'cos (because) I wanted Barack Obama to win again and I was too scared. It was a real nail biter.
"I got a text in, suddenly at 4.20, ping, this thing says, 'We've won!', and then I'm up and I'm watching the Tv but it says Mitt Romney hasn't conceded defeat so I thought oh no... so I had to watch for two hours then before they said (Obama had won)."