This response will assume you're familiar with certain things about changing your name with numerological considerations. To that end, read Name Change for Better Numerology Profile and also Doing Your Own Name Change. Then consult the name change index for articles that may provide information you're still wanting.

A good numerology number for acting is the number 3 and a good numerology number for business is the number 8.

For the dual purpose you have in mind, a name with a destiny number 8 and a personality number 3 would be good. However, it may be prudent to decide which is more important, acting or business, and make the name decision accordingly.

When focused on only one, acting or business, not on both, then you can focus on finer detail.

Examples:

For acting, is it stage or film? Is it family entertainment or adult entertainment? If it's for stage, then a number 5 in the name would also be good (in addition to the number 3). If it's family entertainment, the addition of a number 6 could be a good influence. (See Determine Actor's Name Using Numerology for specific information related to name change for acting.)

For business, the type of products and services list at the Company Name Compatibility article can provide a clue about the name number or numbers that can be good for the business you are considering.

The Index to Company Name Articles and Tools page has links to more pertinent information.