Comic Jeff Davis helps the cast with improv games.

Former professional boxer Laila Ali.

Actor Darren Criss; guest comics Jeff Davis and Greg Proops.

Actor Nolan Gould; guest comics Jeff Davis and Greg Proops.

Actor Robbie Amell; guest comic Jeff Davis.

TV host Sheryl Underwood; guest comic Jeff Davis.

Comic Jeff Davis.

Guest comic Jeff Davis.

Actress Adelaide Kane; guest comic Jeff Davis.

Actor Jaime Camil; guest comic Jeff Davis.

Reality-TV star Willie Robertson ("Duck Dynasty"); guest comic Jeff Davis.

Guest comic Jeff Davis.

Guests: Actress Gina Rodriguez and comedian Jeff Davis. Games played: Weird Newscasters, Duet, Themed Restaurant, Scenes from a Hat, and Helping Hands.

Guest: Comedian Jeff Davis Games played: Scenes from a Hat, Whose Line, Forward Rewind, Newsflash, and Greatest Hits.

Guests: comedian Jeff Davis; actor Karla Souza.

Guest: comedian Jeff Davis.

Joey Fatone; comedian Jeff Davis.

With guest star appearance by comedian Jeff Davis.

Guests: comedian Jeff Davis and actor Brett Dier.

Guests: comedians Brad Sherwood and Jeff Davis, plus actress Cheryl Hines. Games played: Let's Make a Date, Doo Wop, Duet, Scenes from a Hat, and Helping Hands.

Guests: comedian Jeff Davis, plus actress Candice Patton. Games performed: Let's make a Date, World's Worst, Living Scenery, Props, Scenes from a Hat, Hoedown

Guests: comic Jeff Davis, plus actor Charles Esten.

Jeff Davis guests on the improvisational-comedy showcase in which the performers wing it unscripted and unrehearsed.

Charles Esten and Jeff Davis guest on the improvisational-comedy showcase in which the performers wing it unscripted and unrehearsed.

We don't have an overview translated in English. Help us expand our database by adding one.

Guest: comedian Jeff Davis. Games performed: Let's Make a Date, Irish Drinking Song, Sound Effects, Props, Greatest Hits.

Guests: comedian Jeff Davis and actor Cornelius Smith Jr. Games performed: Weird Newscaster, Duet, Living Scenery, Scenes from a Hat, Helping Hands.

Guests: comedian Jeff Davis and singer-songwriter Tinashe.

Guest: comedian Jeff Davis.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

Guest: comedian Jeff Davis. Games played: Weird Newscasters, Hoedown, Infomercial, Scenes from a Hat, Greatest Hits.

Guest: comedian Jeff Davis

Boxing champion Laila Ali; guest comic Jeff Davis.

guest comedian Jeff Davis

Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Jeff Davis, put their comedic skills to the test.

Guest comics Brad Sherwood and Jeff Davis.