Jon Hamm Shares Bathtub with Daniel Radcliffe!

Jon Hamm sits in a bathtub with Daniel Radcliffe in a new still from their upcoming four-part miniseries, A Young Doctor’s Notebook.

The mini-series revolves around “a middle-aged doctor (Hamm) looking back on his days as a young medic during World War I, with his younger self (Radcliffe).”

PHOTOS: Check out the latest pics of Jon Hamm

Also pictured: Jon filming scenes on the set of his hit show Mad Men on Friday (November 2) in Glendale, Calif.

Earlier in the day, the 41-year-old actor was joined on set by his beautiful co-star Jessica Pare in Los Angeles.

20+ pictures inside of Jon Hamm filming Mad Men…