Tim Allen isn't just reuniting with his former Home Improvement and Last Man Standing costars on Shifting Gears - he is also set to share the screen with Los Angeles Dodger Mookie Betts. ABC confirmed that Betts, 32, will be playing himself as he makes his scripted TV debut in an upcoming episode. Comedian Lilly Singh is also joining the show as Riley's (Kat Dennings) new mom friend "who she clicks with instantly, only for their budding friendship to be derailed by unexpected mama drama.