New 'Harry Potter' Stars Arabella Staunton, Dominic McLaughlin, & Alastair Stout Attend First Major Event Together!

The stars of the new Harry Potter TV series are attending their first big event together!

Dominic McLaughlin posed with his arms around co-stars Arabella Staunton and Alastair Stout as they stepped out for the HBO Max Launch Party on Wednesday (March 25) held at Queen Elizabeth Hall in London, England.

For the event, Dominic, 12, sported a denim outfit, Arabella, 11, wore a green jumpsuit, and Alastair, 12, wore a denim jacket with gray jeans.

Keep reading to find out more…In the upcoming series...