Rolf Berg

Udo has a problem. He suffers from a difficulty of being seen. His peers don't take him seriously, look straight through him, and notice him only when he directly speaks to them. Thanks to this, he can live in a tent in a shopping center, where he also works as a detective. The only person in his life is the transsexual perfume seller Amanda.

Wendy is not riding but she meets a horse (Dixie) and Dixie started changing Wendy's life. (imdb)

Nick and Perry are alien dogs from the distant planet Dogma, accidentally stranded on Earth. Shocked at what they find, they become visitors with a vision: one day these tail-sniffing, tick-infested Earth dogs will rise up and walk again on two legs, free of the trappings of human domination. In the meantime, these two free-thinking, superior beings masquerade as ordinary dogs.