The following is a list of appearances by each character, sorted by episode and order of appearance. First appearances are noted in bold. Episode counts are in parentheses.
==Genesis==
Trivia
- To date, only three episodes have featured the entire cast of series regulars: Fallout, Godsend, and Parasite.
- Company Man featured the fewest series regulars to date. Only Hayden Panettiere (Claire), Greg Grunberg (Matt Parkman), and Jack Coleman (Mr. Bennet) appeared.
- Only one series regular has appeared in every episode to date: Hayden Panettiere (Claire). Jack Coleman (Mr. Bennet) has appeared in every episode except Nothing to Hide; he has, however, appeared in every episode since he was made a series regular. The character Hiro Nakamura has appeared in every episode, but was not played by Masi Oka in Company Man.
- Of the series regulars who premiered in Genesis, Tawny Cypress (Simone) has appeared in the fewest episodes. Leonard Roberts (D.L.) has appeared in the fewest episodes of any regular, but he did not premiere until Hiros.
See Also
For a list of character appearances by graphic novel, see here.