I wouldn't put too much stock in it, especially if they're a Voice-Over Actor who only appeared in a decade or so. I would take a look at his acting credits i.e. which shows he's been on and look at the fanbase of that show. Ultimately, Voice actors get a lot of bit parts and not a lot of recognition (One of the most profelific actors in American history is Frank Welker who, among other things, did the voice of the Original Megatron (and a few other Transformers), Abu (Aladdin), Scooby-Doo (as of 2002) and all incarnations of fellow Scooby-Doo Character Fred Jones save the younger version seen in Pup Named Scooby-Doo... of course, you probably don't realize he's in a movie because Welker has a special talent for animal sounds... if you hear a dog bark in a cartoon, chances are it's Welker, not a real dog, behind the the mic.
Most voice actors don't get recognition unless they were famous before they did VA work (Mark Hamil, who mostly gets mentioned because his first role was the Joker in the 90s Batman cartoon (when the casting department learned that their show's biggest star was Luke Skywalker, they naturally gave him the biggest role, The Joker, much to Hamil's dismay, fearing he would be stepping onto sacred territory). As such, his VA characters tend to be villains and sound nothing like Luke Skywalker) or they have had significant live action pressense after starting in VA work (Such as the case in Kevin Michael Richardson, who had been voice acting for years before he played the Kingpin in the Film version of Daredevil).
Chances are your guy is realatively unknown outside of the circles of fans who enjoy the shows this actor has been on... enough to explain away the google search. I would say unless the character's name appears in the title, I wouldn't be too worried. I do like the above mentioned situation of writing the actor and explaining the situation and asking politely. Voice Actors on a whole tend to be a bit more down to Earth by comparison to screen actors (they aren't recognizable and thus, don't usually have crazy fans screaming their character's lines at them.) and overall, they tend to be quite friendly to each other and some of the older Generations have decades in the community and cross polination among the limited actors normally means that they are all friends and friendly (Peter Cullen... The original Optimus Prime, said his biggest problem with Frank Welker was that Welker has made it his life's mission to get Cullen to blow as many takes as possible while doing various voices).