When Fog and his party arrive in Paris, Rigodon goes to hire a coach to take them to the station where they will catch the train to Brindisi. But Rigodon finds that none of the coaches he tries to hire are available, so he and Fog note set off to walk to the station. Along the way, they are offered a lift in a coach which they are told is going to the station, only to find themselves being driven in the wrong direction. It then turns out that their fellow passenger, who at first appeared to be an attractive French lady, is Transfer in disguise. This makes the fact that Rigodon was unable to hire a coach seem a little too convenient, suggesting that Transfer offered the drivers something in exchange for refusing to take Fog and his party to the station, then arranged it so that he and the travellers would cross paths.
Unlike in Dogtanian and the Three Muskehounds, the cats in Around the World with Willy Fog are never seen to extend their claws. However, there is a scene in Episode 9 where Rigodon climbs up the trunks of two trees. Said trees are too wide for him to climb by wrapping his arms around their trunks, as he does when he climbs a palm tree in Hawaii, and he has to climb quite a way before he gets to the lowest branches. Even with his circus skills, he'd have considerable difficulty climbing up a surface that had no handholds, unless he had some means of hanging on. And, when you consider that real, non-anthropomorphic cats use their claws as grappling irons when climbing trees, it's not unreasonable to assume that Rigodon has retractable claws which he uses to help him climb these trees. And presumably the other feline characters also have retractable claws.
For those who don't know, the Grand Tour was a trip around the British Isles and/or continental Europe which wealthy young Englishmen often undertook in the 18th and early 19th Centuries. Given that the latter part of this period would have coincided with his youth, it's very probable that Lord Guinness was among them, especially when you consider how much he regrets the fact that his age and infirmity have prevented him from joining Fog's expedition. It's clear from the way he (in the first episode) talks about it taking "so long to get anywhere" when he was young that he has experience of travelling long distances (though not around the world) which explains why he supports Fog so wholeheartedly.
He was an Indian prince in the original novel and BRB productions did Sandokan in the same anthropomorphic animalverse.
Given how quickly he is ready to murder Willy Fog when his attempts to accuse him of gold theft didn't work out, it seems very likely.
Consider this; a first officer has the power to take command if the ship's captain is unable, or seen as unfit, to do so. Who's to say that if Sergeant Pat was indeed promoted as the first officer of the Nautilus, he would have perhaps done the same nasty oxygen trick to Captain Nemo like he did with Willy Fog? Nobody standing on his way, he would mercilessly attack on ships and if he would have been caught by the government, it would definitely have meant a death sentence to him and the rest of the crew.