Dagmar Rothman (1920 – 1952) born as Dagobert Roehmann was a German professional regurgitator known by his stage name The Great Waldo.
He was known to be able to swallow many animals including fish, frogs, mice and rats and was able to regurgitate them at will.
Rothman began practicing how to swallow and regurgitate objects including light bulbs, razor blades, lemons and pocket watches before moving on to live animals.
There, he was discovered by an American sideshow talent agent and emigrated to the United States.
[4][5] He was able to swallow a series of colored balls and regurgitate them in any specific order.