Let's see...Henry Kissinger's on my TV screen right now.
1) Served under Nixon;
2) Nixon met Elvis;
3) Yvonne Craig was in an Elvis movie;
4) Yvonne Craig guest-starred on Trek.
Reminds me of something I once read in Games Magazine ages ago, a game of making puns out of people's married names, where you had to guess the pun name. One of them went something like: If Diana Prince married and divorced the builder of the Spruce Goose and then got remarried to Nixon's secretary of state, she'd be Wonder Hughes Kissinger now.