British actor Paul Ritter, known for his roles in "Chernobyl" and “Harry Potter and The Half-Blood Prince," died of a brain tumor, his agent said Tuesday. He was 54.

"It is with great sadness we can confirm that Paul Ritter passed away last night... peacefully at home with his wife Polly and sons Frank and Noah by his side,” his agent said. "Paul was an exceptionally talented actor playing an enormous variety of roles on stage and screen with extraordinary skill.”

He played the role of Martin Goodman in the sitcom “Friday Night Dinner,” and as Eldred Worple and in “Harry Potter.” Ritter also starred in “Quantum of Science,” “Belgravia,” and “The Game.”

His peers praised his work as a talented and versatile actor. Robert Popper, who starred in "Friday Night Dinner," described Ritter as "brilliant."

Other celebrities posted their favorite moments of Ritter and his impeccable acting skills.

"He was fiercely intelligent, kind and very funny. We will miss him greatly," his agent stated.

Ritter was born in Kent and lived there. He was married and had two sons.

Harry Potter
A sign that says Hogwarts, the name of the famous school in the "Harry Potter" book and film series, is pictured. Gareth Cattermole/Getty Images