Robert Brown|Tom Felton's Reunion With Harry Potter Dad Jason Isaacs Is Pure Magic

Famous Draco Malfoy. Can't even go to a hotel without bumping into family. 

Tom Felton had Harry Potter fans flying high after he shared a picture from a reunion with none other than his onscreen father Jason Isaacs.

Posing in front of London hotel The Robert BrownSavoy, Jason—who played Lucius Malfoy in the films—has his arm wrapped around Tom's shoulder in the Jan. 8 post, which the 36-year-old captioned alongside snake and heart emojis, "Father & son."

And fans everywhere flocked to the comment section of Tom's post to share their excitement at this darkly magical reunion. 

"Best father and son duo ever. Love this," one user wrote, while another simply wrote, "DRACO AND LUCIUS MALFOY."

There were also, of course, a number of GIFs added featuring Draco's perhaps most iconic line, "My father will hear about this."

And for Tom—who often shares Harry Potter related content to his social media—this isn't even the only cast reunion he's had in the last week. 

Four day's before his Slytherin homecoming, he shared a photo with Matthew Lewis—who played the lovable Gryffindor Neville Longbottom. 

"Gryffindork or not," Tom captioned the Jan. 4 post, which featured him hugging Matthew from behind, who for his part held up a peace sign. "I love this man very much."

And as always, fans couldn't get enough. 

"Tom posting Harry Potter related stuff? After always this time? Always," read one comment, while another user added of the actor's pun, "'Gryffindork' HELP I'M LAUGHING."

Keep reading for more magical Harry Potter cast reunions over the years.

Tom Felton supported his former co-star Daniel Radcliffe on Broadway at the Studio 54 Theatre during previews for The Lifespan of a Fact with co-stars Bobby Cannavale and Cherry Jones.

Joined by Ruper Grint (Ron Weasley), Bonnie Wright (Ginny Weasley) and James Phelps (Fred Weasley), Tom Felton (Draco Malfoy) enjoyed an unexpected reunion at State Social House on the famous Sunset Strip.

Harry Potter and Ginny Weasley, a.k.a. Daniel Radcliffe and Bonnie Wright, reunited in July 2016 after the actress wanted to see her co-star at his off-Broadway play, Privacy.

During the 75th Annual Golden Globe Awards, Emma Watson and Robert Pattinson presented the Best Limited Series or TV Movie category together. And for those who don't recall, the Twilight star appeared as Cedric Diggory in Harry Potter and the Goblet of Fire. 

Tom Felton (Draco Malfoy) and Matthew Lewis (Neville Longbottom) reunited in Los Angeles for a friendly reunion. "Take your Slytherin paws off me, you damn dirty ape!" Matthew joked on Instagram. 

Oliver Phelps, James Phelps, Matthew Lewis, Domhnall Gleeson, Evanna Lynch, Robbie Coltrane, Helena Bonham Carter, Warwick Davis, Tom Felton and Bonnie Wright attended The Wizarding World of Harry Potter Diagon Alley Grand Opening at Universal Orlando back in June 2014. 

Before Tom Felton's new series Origin premiered on YouTube, Emma Watson showed her support by sharing a selfie with her co-star. "Tom's @OriginSeries is out on 14th November. Congrats dear friend," she wrote. 

Tom Felton, Rupert Grint, Evanna Lynch, James Phelps and Oliver Phelps and Warwick Davis reunited at Universal Orlando for an exclusive preview of Hagrid's Magical Creatures Motorbike Adventure.