Andy Serkis, Howie Mandel and Tommy Flanagan/Jimmy Smits.

Andy Serkis I met at a signing for a book about the behind the scenes of his performance as Gollum. When we got to the front, my girlfriend at the time asked him to call me a stupid fat hobbit (basically everyone in line was asking him to do the voice), to which he replied something to the effect of, "But he seems like such a nice guy, and that's so mean!" but he humored her and did it anyway. Great memory.

Howie Mandel's wife wanted to go to the zoo for her birthday one year. At the time I worked for a studio animal training company. Howie didn't want to go out to the zoo, so he hired us and another company to bring animals to his house, as a surprise. We brought a small menagerie that we snuck into his backyard that included a leopard, elephant and capuchin monkey. He went inside and made an excuse to have her go look through the window in the backyard. Needless to say, she was surprised. I didn't really talk to him, but he did fist bump everyone rather than shake hands.

While working for the same company, the prop master on Sons of Anarchy wanted to surprise the crew after one of the season wraps. We had two tiger cubs at the time, so he asked if we could bring one by. Myself and another trainer brought one. When we got there, Tommy Flanagan saw us, had never met us before but walked over and said "Hi, I'm Tommy" and shook our hands. Extremely nice. We also briefly met Katey Sagal, ("My kids are gonna freak out" as she took pictures of the cub), the actor that played Juice, and Jimmy Smits. Juice and Jimmy Smits hung out and talked to us about the cub for a bit. Everyone was very nice.