yes. your concerns are valid. he sounds very odd. he has revealed too much information in such a short time.... just in one message... does not make much sense. Why is he giving his number to you right away? lost of odd things in this one message... Why is he telling you that he was an actor? And now he is an expert in interior design? Why do you need all this information about someone you just met? Weird.
Also, a thought: do you have his real name? you can research and see if he really was an actor in Russia.