Adam and his long-term girlfriend Caroline Daly welcomed their first child together, called Teddy, on Monday (8 September).
Adam, who plays the character of Adam Barton in the ITV soap, announced his baby joy to fans on Twitter last night.
He said: "Today I fell more in love with @Carolinejanexx than I ever will do! Teddy James Thomas born 8/9/2014. New lucky roulette numbers right there ;)."
2day I fell more in lovewith @Carolinejanexx than I ever will do!Teddy James Thomas born 8/9/2014 new lucky roulette numbers right there ;)— adam thomas (@adamthomas21) September 8, 2014
Adam isn't the only one excited by his new arrival – his brother Ryan Thomas, who plays Jason Grimshaw in Coronation Street - looked like a proud uncle as he shared the first picture of baby Teddy.
In a touching close-up photo showing Ryan planting a kiss on his baby nephew, he said: "I'm an uncle!!!! #TeddyJamesThomas."
Adam, who made his breakthrough into acting as school boy Donte Charles in Waterloo Road, announced his happy baby news with dance teacher Caroline in April.
Adam told fans on Twitter at the time: "News just in, I'm gonna be a DAD!! With this beautiful lady as the mum! @Carolinejanexx #happydad ;)."
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