You're right that an entire character is probably trademarkable because two similar logos are likely to be confused for each other, but I don't think that's eno

You're right that an entire character is probably trademarkable because two similar logos are likely to be confused for each other, but I don't think that's enough. Disney may depict Mickey as a welder in some logo, but unless Disney is using that mark to identify its products in the welding industry, they ought have no right to interfere with someone else doing so. Trademarks exist so I can't trick people into buying my product instead of your product. So if you're not offering a competing product, you ought have no right to control that use.