Scott Marshall is new first team coach, Michael Watts becomes strength and conditioning coach with assistance from Chris Lorkin.
"It takes time to build a team and you also need time to build the staff around you and these appointments will help everybody," said Lambert.
"Scott worked with me at Wycombe and he has really good mannerisms about himself, a very professional approach and he will enhance everything.
"Definitely he will be a big hand for myself, Ian Culverhouse and Gary Karsa.
"Michael I knew from previously working with him as well and he's another top guy at his job and Chris will assist him really well.
"They'll be my staff and we'll all be striving for the same thing which is to continue to build the club and make Aston Villa as good as it can possibly be."