Wormtail is that you? British actor Timothy Spall stepped out at the Venice Film Festival on Wednesday looking entirely unrecognizable.

The "Harry Potter" star, who famously portrayed Peter Pettigrew in the films, looked trim and slim after his dramatic weight loss. Spall wore a navy suit with a pink and red printed tie on the red carpet.

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His hair remained rumpled, but his slimmed-down face was entirely transformed.

Spall was attending the premiere of his upcoming film, "The Journey," in which he plays Irish politician Ian Paisley.

The seasoned actor has been working hard to improve his health and eating habits for the last two years. The photo above features him at the Cannes Film Festival in 2014, and the only similarity is Spall's tie.

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"I was a glutton. I loved food. I still do. But I didn't have a thing in my mind that told me when to stop eating," the actor said in 2014.

Spall isn't the first "Potter" star to transform after the series' final film. Other standouts include Matthew Lewis (Neveille Longbottom), Stanislav Yanevski (Viktor Krum), and Afshan Azad (Padma Patil).