There are over 10,000 trillion alien races/civilizations (with 100,000+ per galaxy; excluding humans) in the Animorphs universe.
There are over 10,000 trillion alien races (with 100,000+ per galaxy; excluding humans) in the Doctor Who universe.
There are over 10,000 trillion alien races/civilzations (100,000+ per galaxy; excluding humans) in the Power Rangers universe.
There are trillions of alien races (excluding humans) in the WildStorm Universe.
There are dozens of alien races in the WildStorm Universe (including Aegenans, Daemonites, Kherubim, etc.; but in the WildStorm universe, there are trillions of them).
There is no scientific proof that alien races exist in the universe so we have no idea what they might look like if they did exist.
There are over 10,000 trillion alien races (100,000+ per galaxy; excluding humans) in the Deadman Wonderland Universe.
There are over 10,000 trillion alien races/civilizations (100,000+ per galaxy; excluding humans) in the Outlaw Star Universe.
There are over 10,000 trillion alien races/civilizations (100,000+ per galaxy; excluding humans) in the Code Lyoko Universe.
There are over 10,000 trillion alien races/civilizations (100,000+ per galaxy; excluding humans) in the Titan AE Universe.
There are no alien races in Cowboy Bebop (But in the Cowboy Bebop universe, and fan-fiction also; there are trillions of them (with hundreds of thousands of them in each galaxy)).
There are trillions of alien races (with hundreds of thousands of them per galaxy; excluding humans) in the Big O anime universe (in reality; Paradigm City is a computer simulation).
There are over 10,000 trillion alien races/civilizations (100,000+ per galaxy; excluding humans) in the Damocles Universe (the universe Sigma, the qeelocke, Damocles, the Sword, and One-Eyed Jack's crew originated in).
There are no alien races in Code Lyoko (But in the Code Lyoko universe, and fan-fiction also: there are trillions of them (with hundreds of thousands of them in each galaxy)).
There are no alien races in Deadman Wonderland (But in the Deadman Wonderland universe, and fan-fiction also; there are trillions of them (with hundreds of thousands of them in each galaxy)).