Who played a hobo in I Love Lucy?

The hobo you're thinking of was played by William Frawley, who played the role of Fred Mertz, Lucy's landlord and Ricky's best friend, in the television series "I Love Lucy". He was a regular cast member and played the part throughout the show's run.

While Fred Mertz wasn't a hobo by trade, he did have a few episodes where he dressed and acted like one, usually for comedic effect. Some notable examples include:

* "The Million Dollar Movie": Fred pretends to be a hobo to get into the premiere of a movie.

* "Lucy Tells the Truth": Fred dresses as a hobo to scare Lucy into telling the truth.

Although he wasn't strictly a hobo character, Fred Mertz's "hobo" appearances in "I Love Lucy" are some of the most memorable moments in the show.