The tiny tot stole the show in Manchester on Sunday, 20 September while Catherine and fiancé Tom Pitfield were attending the opening of the new Ultimate Performance Gym.
Little Alfie looked adorable in his UP jumper and little grey hat as he joined his parents on the red carpet.
Coronation Street star Catherine gave birth to Alfie, the couple's first son, in March. She's been engaged to personal trainer Tom since September last year, and the couple plan to marry next year.
Catherine made her return to Corrie earlier this month, following her maternity leave. Her character Eva Price made a dramatic re-entrance to Weatherfield on the 16 September episode, nursing a broken heart after a boyfriend cheated on her off screen.
Catherine tweeted after the episode: "Guys thanks so much for your tweets re: Eva's subtle 'comeback' so glad you enjoyed it. I've missed her too."
Next up for the Coronation Street cast is this week's hugely anticipated live episode, to tie in with ITV's 60th anniversary celebrations. It airs Wednesday, 23 September at 7.30pm on ITV1.
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