Multiple Followers

****SKYRIM ONLY*****

There are 10 followers, 11 if you count Shadowmere.

Quest Characters
The following characters are triggered to follow you by a quest and don't replace your main follower. However, neither their inventory nor the followers commands are available. Some can use commands while some can not

Dark Brotherhood Followers + Serana
It is possible to use a small glitch to hire followers which have regular commands available as well as their inventory.

Temporary Followers
You and your followers can create more followers but they will be temporary.