Related Clues:
- Editor of two "Das Kapital" volumes
- "Time flies like an arrow. Fruit flies like a banana" speaker
- Marx's collaborator on 'The Communist Manifesto'
- Karl of communism
- Karl or Groucho?
- ''The Communist Manifesto'' co-author
- Memorable brothers
- Class-action philosopher?
- "Right Here Waiting" rocker Richard
- ''Communist Manifesto'' coauthor
- Rufus T. Firefly portrayer
- ''Animal Crackers'' surname
- Chico, e.g.
- Marx's friend
- 1950s-'60s TV quiz show host