Entry point: Little House on the Prairie (1974).
Explore the career in pictures
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Photo: Hammer Film Productions / Columbia Pictures. Richard Bull in the 1958 television pilot Tales of Frankenstein. Commons screenshot crop converted to WebP and adapted for the share image. Public domain in the US, copyright not renewed per Commons. Portrait resized and converted; share image cropped with text added. See the source and license details below. Image credits
Richard Bull was an American stage, film and television actor, born in Zion, Illinois, on June 26, 1924. He died on February 3, 2014. Viewers of Little House on the Prairie know him as Nels Oleson, the shopkeeper whose quieter manner makes a memorable contrast with the rest of the Oleson household. An earlier continuing role as the doctor in Voyage to the Bottom of the Sea and a wide range of guest appearances reveal a career much larger than that familiar frontier store.
Bull studied at the Goodman Theatre School in Chicago, with a wartime interruption for service as an Army Air Corps radio operator. Theatre remained important as he and his wife, actor Barbara Collentine, worked in different cities before establishing screen careers in Los Angeles. His film credits include The Satan Bug, The Andromeda Strain and High Plains Drifter. These productions place a recognizable supporting performer in very different worlds, from scientific crisis to the Western.
Nels Oleson is part of the community surrounding the Ingalls family, not a member of that family. His mercantile supplies a setting where business, gossip and personal disagreements meet. A rewatch can pay attention to the small choices that make a recurring character feel consistent: a pause before answering, a measured response or a moment of impatience. Such details matter in a series that returns to the same townspeople across many episodes.
The Oleson household often sets Nels against Harriet's stronger opinions and the demands of their children. Bull's performance gives these scenes a quieter point of attention. That does not mean Nels never objects or acts decisively. Watching when he chooses to speak is a useful way to study the character. The contrast with his medical role aboard the Seaview is equally instructive: both can involve calm delivery, but the fictional situations and responsibilities are different.
Katherine MacGregor plays Harriet Oleson, while Alison Arngrim and Jonathan Gilbert play Nellie and Willie. Bull had also worked on Bonanza before joining Michael Landon's Little House ensemble. His long partnership with Barbara Collentine included stage work as well as their shared life. These connections help explain the range of settings in which he worked without reducing an actor's career to a list of famous colleagues or assuming one earlier job directly caused a later casting.
Voyage to the Bottom of the Sea puts Bull in the Seaview's science-fiction adventures; Little House places him in a historical family drama. Their production artwork signals those different television worlds. The portrait above comes from Tales of Frankenstein, a 1958 pilot, and is labelled accordingly rather than being presented as a photograph of Nels. The distinction matters for a performer whose appearance and screen context changed across several decades.
Bull is an example of how supporting and recurring actors give a series its social world. Following Nels through ordinary shop scenes can be as revealing as choosing a dramatic showcase episode. For a broader introduction, compare Little House with Voyage to the Bottom of the Sea and one of his film credits. The aim is to recognize the working actor across those settings, while retaining the stage background that preceded the television roles most viewers remember.
Selected career milestones. Years identify the production or labeled milestone; recurring actors may join a series later. Artwork represents the production and may show other cast members. Select an image for a larger view.
Nels Oleson. The mercantile owner in Walnut Grove's recurring ensemble.
Production artwork from the DailyTimeCapsule archive. Image credits
The doctor. Recurring Seaview role; year identifies the series premiere.
Production artwork from the DailyTimeCapsule archive. Image credits
Supporting performer. A film credit outside his familiar family-television setting.
Production artwork from the DailyTimeCapsule archive. Image credits
Portrait: Hammer Film Productions / Columbia Pictures
https://commons.wikimedia.org/wiki/File:Richard_Bull_in_Tales_of_Frankenstein_(1958).jpg
License: Public domain in the US, copyright not renewed per Commons https://commons.wikimedia.org/wiki/Template:PD-US-not_renewed
Reviewed September 22, 2026. Source references and image credits are listed below. This is a selected profile, not a complete credit list.
Production artwork is reused from the DailyTimeCapsule archive. The imagery represents the production and may not depict this actor or their particular season. Portrait and share-photo attribution appears beneath the portrait.
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