Adding credits or lower thirds to a video can be done using the “Title” menu in the top bar. There are multiple different types of titles including basic stills, rolls, and crawls. Note: Some good go-to fonts are Helvetica and Bank Gothic. 

For a tutorial on how to work with different types of titles, check the playlist below.

Lynda Playlist: DLL Adobe Premiere Titles, Credits, Etc.

https://www.lynda.com/SharedPlaylist/3dc00d9ec1784bee95f569713e7d345f