Herbert Manfred "Zeppo" Marx (February 25, 1901 – November 30, 1979) was an American film star, theatrical agent and businessman. He was the youngest of the five Marx Brothers. He appeared in the first five Marx Brothers films, but then left the act to start his second career as a theatrical agent. Description above from the Wikipedia article Zeppo Marx, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Duck Soup
(Bob Roland)
The Movie Orgy
(Self (archive footage))
The Cocoanuts
(Jamison)
Animal Crackers
(Horatio Jamison)
Horse Feathers
(Frank Wagstaff)
Monkey Business
(Zeppo)
A Kiss in the Dark
((as Herbert Marx))
I'll Say She Is
(Sammy Brown)
Oops, Those Hollywood Bloopers!
(Self (archive footage))
The House That Shadows Built
(Sammy Brown)
Hollywood on Parade No. B-5
(Self (archive footage) (uncredited))
The Marx Brothers: Hollywood's Kings of Chaos
(Self (archive footage))
Inside the Marx Brothers
(Self (archive footage))
Humor Risk
(Playboy / Barowner)
America After Dark
(Self)