- - karl, groucho, or richard
- - Zeppo or Chico
- - Richard or Karl
- - Karl or Zeppo
- - Karl or Harpo
- - Karl or Chico
- - Harpo or Chico
- - Groucho or Karl?
- - Groucho or Harpo
- - Chico, Groucho, Gummo, Harpo, or Zeppo of comedy
- - Chico or Zeppo.
- - Gummo or Zeppo
- - Funny Groucho or Harpo
- - Harpo, Groucho, or Chico
- - Harpo or Karl?
- - Harpo, Zeppo or Groucho
- - Run into Weber or another economist
- - Karl, Richard or Harpo
- - Chico or Karl
- - Groucho or Chico
- - Chico or Harpo
- - Karl or Groucho
- - Karl ...., Das Kapital author
- - Four-star surname of early talkies
- - Spoil unknown anti-capitalist
- - Endless Summer Nights crooner Richard
- - who wrote das kapital?
- - ...... Brothers, film comedians
- - "workers of the world, unite!": ...... and engels
- - Comedian family, the ... Brothers
- - Did Karl take a month to get cross?
- - Film brothers
- - Comedian Groucho
- - Manifesto writer
- - Groucho
- - Engels's associate
- - Chico, e.g.
- - Who said "History repeats itself, first as tragedy, second as farce"
- - Titan of anticapitalism
- - Star of "A Night at the Opera"
- - Socialism founder
- - Revolutionary expelled from Prussia in 1849
- - Pop singer Richard
- - Philosopher who gave his name to an -ism
- - Philosopher influenced by Hegel
- - Out-of-favor icon
- - Last name of Groucho, Chico, Harpo, Gummo, and Zeppo
- - Karl who philosophized about class struggle
- - Karl who cowrote "The Communist Manifesto"
- - Harpo
- - Groucho, Harpo, Chico, Zeppo and Gummo, but not Karl
- - Fraternal surname of comedy
- - Famous film family
- - Famous comedy team.
- - Family name in comedy
- - Engels associate
- - Collaborator with Engels
- - Class-action philosopher?
- - Chico's last name
- - Big name in communism and comedy
- - Author of "The Communist Manifesto"
- - "Time wounds all heels" comic
- - "The rich will do anything for the poor but get off their backs" theorist
- - "The Poverty of Philosophy" philosopher
- - "Right Here Waiting" rocker Richard
- - "Go West" name
- - "Democracy is the road to socialism" writer
- - "Das Kapital" writer
- - "Anyone who says he can see through women is missing a lot" quipster
- - German philosopher
- - "Das Kapital" author
- - Karl who co-wrote a manifesto
- - Damage unknown anti-capitalist
- - His tombstone reads 'Workers of all lands unite'
- - Groucho of comedy
- - Harm unknown anti-capitalist
- - Chico was the first-born one
- - Any 'Duck Soup' brother
- - Socialist to spoil vote in General Election
- - Red stains by one's ears?
- - German social-science pioneer
- - Manifesto man
- - Communist icon
- - Surname of the stars of 20-, 37- and 53-Across
- - Influence on Castro and Mao
- - See 38-Down
- - Any of the 'Animal Crackers' brothers
- - Karl —, socialist
- - He claimed the Greeks were offside, in a Monty Python sketch
- - Harpo, for one
- - 'Duck Soup' marquee name
- - 'Revolutions are the locomotives of history' sayer
- - Who said 'Revolutions are the locomotives of history'
- - "The Poverty of Philosophy" author
- - Who said religion 'is the opium of the people'
- - Surname of four "Animal Crackers" actors
- - Author of Das Kapital
- - Big name in economics history
- - Engels collaborator
- - 'A Night at the Opera' surname
- - 'Die Deutsche Ideologie' writer
- - Socialist hit back wanting favourable sign at the polls
- - See 76-Down
- - Who said history repeats itself 'the first time as tragedy, the second time as farce'
- - Groucho's surname
- - Groucho —, comic
- - 'You Bet Your Life' host
- - Gummo, for one
- - Brothers seen in "Duck Soup"
- - "The Communist Manifesto" coauthor
- - "Duck Soup" surname
- - Writer on class struggle
- - His epitaph begins "Workers of all lands unite"
- - "Animal Crackers" brothers
- - Richard with the 1989 #1 hit "Right Here Waiting"
- - "Horse Feathers" family name
- - Surname of four stars in "Duck Soup"
- - Surname of four "Duck Soup" stars
- - "Horse Feathers" surname
- - "I have had a perfectly wonderful evening, but this wasn't it" speaker
- - Prussian-born philosopher
- - "Those are my principles. If you don't like them I have others" speaker
- - Das Kapital author Karl
- - "Duck Soup" name
- - "Dictatorship of the proletariat" philosopher
- - German socialist Karl
- - Karl with a manifesto
- - Noted communist buried in Highgate Cemetery
- - Big critic of capitalism
- - Comedic actor Groucho
- - "The Big Store" name
- - Any brother in "Animal Crackers"
- - German political theorist
- - Any of five O-ending brothers
- - Surname of comedic brothers
- - Noted critic of capitalism
- - Last name in comedy
- - "A Night at the Opera" name
- - Comedy's .... Brothers
- - 1950s-'60s TV quiz show host
- - Zeppo, for one
- - Memorable brothers
- - Proponent of a classless society
- - "Animal Crackers" surname
- - Karl of communism
- - With 53-Across, noted comedy group, in brief
- - "Time flies like an arrow. Fruit flies like a banana" speaker
- - See 10-Down
- - .... Brothers (Classic funny movies act)
- - Surname of Groucho and Chico
- - 'right here waiting' singer richard
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- [ Other definitions ]